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dvb_usb_af9015: command failed=1 - stable: 4.0.2

DISCUSSION poma 2 participants 12 messages May 8, 2015 – Jul 2, 2015

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poma

author
#0 lore raw
[    0.000000] Linux version 4.0.2-200.fc21.x86_64 ...
[    0.870875] usb 1-2: new high-speed USB device number 2 using ehci-pci
[    0.990286] usb 1-2: New USB device found, idVendor=15a4, idProduct=9016
[    0.992575] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[    0.994859] usb 1-2: Product: DVB-T 2
[    1.001398] usb 1-2: Manufacturer: Afatech
[    1.003555] usb 1-2: SerialNumber: 010101010600001
[    1.009194] Afatech DVB-T 2: Fixing fullspeed to highspeed interval: 10 -> 7
[    1.011694] input: Afatech DVB-T 2 as /devices/pci0000:00/0000:00:02.1/usb1/1-2/1-2:1.1/0003:15A4:9016.0001/input/input5
[    1.066814] hid-generic 0003:15A4:9016.0001: input,hidraw0: USB HID v1.01 Keyboard [Afatech DVB-T 2] on usb-0000:00:02.1-2/input1
[   11.997119] usb 1-2: dvb_usb_v2: found a 'Afatech AF9015 reference design' in warm state
[   12.206778] usb 1-2: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[   12.207412] DVB: registering new adapter (Afatech AF9015 reference design)
[   12.286137] i2c i2c-13: af9013: firmware version 5.1.0.0
[   12.289121] usb 1-2: DVB: registering adapter 0 frontend 0 (Afatech AF9013)...
[   12.343650] mxl5007t 13-00c0: creating new instance
[   12.346003] mxl5007t_get_chip_id: unknown rev (3f)
[   12.346156] mxl5007t_get_chip_id: MxL5007T detected @ 13-00c0
[   12.350371] usb 1-2: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[   12.350649] DVB: registering new adapter (Afatech AF9015 reference design)
[   12.553632] i2c i2c-13: af9013: found a 'Afatech AF9013' in warm state
[   12.557256] i2c i2c-13: af9013: firmware version 5.1.0.0
[   12.563779] usb 1-2: DVB: registering adapter 1 frontend 0 (Afatech AF9013)...
[   12.564554] mxl5007t 13-00c0: attaching existing instance
[   12.567004] usb 1-2: dvb_usb_af9015: command failed=1
[   12.567555] mxl5007t_soft_reset: 521: failed!
[   12.569745] mxl5007t_attach: error -121 on line 907
[   12.571231] usbcore: registered new interface driver dvb_usb_af9015
$ lsdvb

lsdvb: Simple utility to list PCI/PCIe DVB devices
Version: 0.0.4
Copyright (C) Manu Abraham
$

author
#1 lore raw
Quoted 35 lines · poma
[    0.000000] Linux version 4.0.2-200.fc21.x86_64 ...
[    0.870875] usb 1-2: new high-speed USB device number 2 using ehci-pci
[    0.990286] usb 1-2: New USB device found, idVendor=15a4, idProduct=9016
[    0.992575] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[    0.994859] usb 1-2: Product: DVB-T 2
[    1.001398] usb 1-2: Manufacturer: Afatech
[    1.003555] usb 1-2: SerialNumber: 010101010600001
[    1.009194] Afatech DVB-T 2: Fixing fullspeed to highspeed interval: 10 -> 7
[    1.011694] input: Afatech DVB-T 2 as /devices/pci0000:00/0000:00:02.1/usb1/1-2/1-2:1.1/0003:15A4:9016.0001/input/input5
[    1.066814] hid-generic 0003:15A4:9016.0001: input,hidraw0: USB HID v1.01 Keyboard [Afatech DVB-T 2] on usb-0000:00:02.1-2/input1
[   11.997119] usb 1-2: dvb_usb_v2: found a 'Afatech AF9015 reference design' in warm state
[   12.206778] usb 1-2: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[   12.207412] DVB: registering new adapter (Afatech AF9015 reference design)
[   12.286137] i2c i2c-13: af9013: firmware version 5.1.0.0
[   12.289121] usb 1-2: DVB: registering adapter 0 frontend 0 (Afatech AF9013)...
[   12.343650] mxl5007t 13-00c0: creating new instance
[   12.346003] mxl5007t_get_chip_id: unknown rev (3f)
[   12.346156] mxl5007t_get_chip_id: MxL5007T detected @ 13-00c0
[   12.350371] usb 1-2: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[   12.350649] DVB: registering new adapter (Afatech AF9015 reference design)
[   12.553632] i2c i2c-13: af9013: found a 'Afatech AF9013' in warm state
[   12.557256] i2c i2c-13: af9013: firmware version 5.1.0.0
[   12.563779] usb 1-2: DVB: registering adapter 1 frontend 0 (Afatech AF9013)...
[   12.564554] mxl5007t 13-00c0: attaching existing instance
[   12.567004] usb 1-2: dvb_usb_af9015: command failed=1
[   12.567555] mxl5007t_soft_reset: 521: failed!
[   12.569745] mxl5007t_attach: error -121 on line 907
[   12.571231] usbcore: registered new interface driver dvb_usb_af9015
Quoted 7 lines
$ lsdvb

lsdvb: Simple utility to list PCI/PCIe DVB devices
Version: 0.0.4
Copyright (C) Manu Abraham
$

Afatech AF9015 reference design:

3.18.12-200.fc21.x86_64 - OK

3.19.7-200.fc21.x86_64 - KO
4.0.2-200.fc21.x86_64 - KO
4.1.0-0.rc2.git3.1.fc23.x86_64 - KO

If you have a patch to test, shout loudly.

author
#2 lore raw

Re: dvb_usb_af9015: command failed=1 >= 3.19.x

Quoted 47 lines · poma
Quoted 35 lines · poma
[    0.000000] Linux version 4.0.2-200.fc21.x86_64 ...
[    0.870875] usb 1-2: new high-speed USB device number 2 using ehci-pci
[    0.990286] usb 1-2: New USB device found, idVendor=15a4, idProduct=9016
[    0.992575] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[    0.994859] usb 1-2: Product: DVB-T 2
[    1.001398] usb 1-2: Manufacturer: Afatech
[    1.003555] usb 1-2: SerialNumber: 010101010600001
[    1.009194] Afatech DVB-T 2: Fixing fullspeed to highspeed interval: 10 -> 7
[    1.011694] input: Afatech DVB-T 2 as /devices/pci0000:00/0000:00:02.1/usb1/1-2/1-2:1.1/0003:15A4:9016.0001/input/input5
[    1.066814] hid-generic 0003:15A4:9016.0001: input,hidraw0: USB HID v1.01 Keyboard [Afatech DVB-T 2] on usb-0000:00:02.1-2/input1
[   11.997119] usb 1-2: dvb_usb_v2: found a 'Afatech AF9015 reference design' in warm state
[   12.206778] usb 1-2: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[   12.207412] DVB: registering new adapter (Afatech AF9015 reference design)
[   12.286137] i2c i2c-13: af9013: firmware version 5.1.0.0
[   12.289121] usb 1-2: DVB: registering adapter 0 frontend 0 (Afatech AF9013)...
[   12.343650] mxl5007t 13-00c0: creating new instance
[   12.346003] mxl5007t_get_chip_id: unknown rev (3f)
[   12.346156] mxl5007t_get_chip_id: MxL5007T detected @ 13-00c0
[   12.350371] usb 1-2: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[   12.350649] DVB: registering new adapter (Afatech AF9015 reference design)
[   12.553632] i2c i2c-13: af9013: found a 'Afatech AF9013' in warm state
[   12.557256] i2c i2c-13: af9013: firmware version 5.1.0.0
[   12.563779] usb 1-2: DVB: registering adapter 1 frontend 0 (Afatech AF9013)...
[   12.564554] mxl5007t 13-00c0: attaching existing instance
[   12.567004] usb 1-2: dvb_usb_af9015: command failed=1
[   12.567555] mxl5007t_soft_reset: 521: failed!
[   12.569745] mxl5007t_attach: error -121 on line 907
[   12.571231] usbcore: registered new interface driver dvb_usb_af9015
Quoted 7 lines
$ lsdvb

lsdvb: Simple utility to list PCI/PCIe DVB devices
Version: 0.0.4
Copyright (C) Manu Abraham
$

Afatech AF9015 reference design:

Quoted 10 lines

3.18.12-200.fc21.x86_64 - OK

3.19.7-200.fc21.x86_64 - KO
4.0.2-200.fc21.x86_64 - KO
4.1.0-0.rc2.git3.1.fc23.x86_64 - KO

If you have a patch to test, shout loudly.

Looks like the same bug:
AVerMedia HD Volar (A867) - Afatech AF9033
http://forum.sifteam.eu/sifbox-by-sif-team/125122-kernel-3-19-a867-xgaz-dove.html

http://git.linuxtv.org/cgit.cgi/media_build.git - no positive effect.

Ho ho ho

author
#3 lore raw

Re: dvb_usb_af9015: command failed=1 _ lsdvb >= 3.19.x

Quoted 59 lines · poma
Quoted 47 lines · poma
Quoted 35 lines · poma
[    0.000000] Linux version 4.0.2-200.fc21.x86_64 ...
[    0.870875] usb 1-2: new high-speed USB device number 2 using ehci-pci
[    0.990286] usb 1-2: New USB device found, idVendor=15a4, idProduct=9016
[    0.992575] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[    0.994859] usb 1-2: Product: DVB-T 2
[    1.001398] usb 1-2: Manufacturer: Afatech
[    1.003555] usb 1-2: SerialNumber: 010101010600001
[    1.009194] Afatech DVB-T 2: Fixing fullspeed to highspeed interval: 10 -> 7
[    1.011694] input: Afatech DVB-T 2 as /devices/pci0000:00/0000:00:02.1/usb1/1-2/1-2:1.1/0003:15A4:9016.0001/input/input5
[    1.066814] hid-generic 0003:15A4:9016.0001: input,hidraw0: USB HID v1.01 Keyboard [Afatech DVB-T 2] on usb-0000:00:02.1-2/input1
[   11.997119] usb 1-2: dvb_usb_v2: found a 'Afatech AF9015 reference design' in warm state
[   12.206778] usb 1-2: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[   12.207412] DVB: registering new adapter (Afatech AF9015 reference design)
[   12.286137] i2c i2c-13: af9013: firmware version 5.1.0.0
[   12.289121] usb 1-2: DVB: registering adapter 0 frontend 0 (Afatech AF9013)...
[   12.343650] mxl5007t 13-00c0: creating new instance
[   12.346003] mxl5007t_get_chip_id: unknown rev (3f)
[   12.346156] mxl5007t_get_chip_id: MxL5007T detected @ 13-00c0
[   12.350371] usb 1-2: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[   12.350649] DVB: registering new adapter (Afatech AF9015 reference design)
[   12.553632] i2c i2c-13: af9013: found a 'Afatech AF9013' in warm state
[   12.557256] i2c i2c-13: af9013: firmware version 5.1.0.0
[   12.563779] usb 1-2: DVB: registering adapter 1 frontend 0 (Afatech AF9013)...
[   12.564554] mxl5007t 13-00c0: attaching existing instance
[   12.567004] usb 1-2: dvb_usb_af9015: command failed=1
[   12.567555] mxl5007t_soft_reset: 521: failed!
[   12.569745] mxl5007t_attach: error -121 on line 907
[   12.571231] usbcore: registered new interface driver dvb_usb_af9015
Quoted 7 lines
$ lsdvb

lsdvb: Simple utility to list PCI/PCIe DVB devices
Version: 0.0.4
Copyright (C) Manu Abraham
$

Afatech AF9015 reference design:

Quoted 10 lines

3.18.12-200.fc21.x86_64 - OK

3.19.7-200.fc21.x86_64 - KO
4.0.2-200.fc21.x86_64 - KO
4.1.0-0.rc2.git3.1.fc23.x86_64 - KO

If you have a patch to test, shout loudly.

Quoted 9 lines

Looks like the same bug:
AVerMedia HD Volar (A867) - Afatech AF9033
http://forum.sifteam.eu/sifbox-by-sif-team/125122-kernel-3-19-a867-xgaz-dove.html

http://git.linuxtv.org/cgit.cgi/media_build.git - no positive effect.

Ho ho ho

It seems the 'lsdvb' is what made the device unusable after re/boot.
Of course this applies to kernel >= 3.19.x
The device has to be unplugged and after a minute or two plugged back to be usable again.

$ lsdvb

lsdvb: Simple utility to list PCI/PCIe DVB devices
Version: 0.0.4
Copyright (C) Manu Abraham

usb (5:0 -868620712:32665) on PCI Domain:-874755276 Bus:32665 Device:2098 Function:0

	DEVICE:0 ADAPTER:0 FRONTEND:0 (Afatech AF9013) 
		 FE_OFDM Fmin=174MHz Fmax=862MHz
	DEVICE:0 ADAPTER:1 FRONTEND:0 (Afatech AF9013) 
		 FE_OFDM Fmin=174MHz Fmax=862MHz
$ dmesg
[   80.332837] usb 2-2: dvb_usb_af9015: command failed=1
[   80.332857] i2c i2c-13: af9013: i2c wr failed=-5 reg=d607 len=1
[   80.337837] usb 2-2: dvb_usb_af9015: command failed=1
[   80.337848] mxl5007t_write_reg: 472: failed!
[   80.337853] mxl5007t_sleep: error -121 on line 709
[   80.338324] usb 2-2: dvb_usb_af9015: command failed=1
[   80.338328] mxl5007t_write_reg: 472: failed!
[   80.338332] mxl5007t_sleep: error -121 on line 711
author
#4 lore raw

Re: dvb_usb_af9015: command failed=1 _ kernel >= 4.1.x

Quoted 87 lines · poma
Quoted 59 lines · poma
Quoted 47 lines · poma
Quoted 35 lines · poma
[    0.000000] Linux version 4.0.2-200.fc21.x86_64 ...
[    0.870875] usb 1-2: new high-speed USB device number 2 using ehci-pci
[    0.990286] usb 1-2: New USB device found, idVendor=15a4, idProduct=9016
[    0.992575] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[    0.994859] usb 1-2: Product: DVB-T 2
[    1.001398] usb 1-2: Manufacturer: Afatech
[    1.003555] usb 1-2: SerialNumber: 010101010600001
[    1.009194] Afatech DVB-T 2: Fixing fullspeed to highspeed interval: 10 -> 7
[    1.011694] input: Afatech DVB-T 2 as /devices/pci0000:00/0000:00:02.1/usb1/1-2/1-2:1.1/0003:15A4:9016.0001/input/input5
[    1.066814] hid-generic 0003:15A4:9016.0001: input,hidraw0: USB HID v1.01 Keyboard [Afatech DVB-T 2] on usb-0000:00:02.1-2/input1
[   11.997119] usb 1-2: dvb_usb_v2: found a 'Afatech AF9015 reference design' in warm state
[   12.206778] usb 1-2: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[   12.207412] DVB: registering new adapter (Afatech AF9015 reference design)
[   12.286137] i2c i2c-13: af9013: firmware version 5.1.0.0
[   12.289121] usb 1-2: DVB: registering adapter 0 frontend 0 (Afatech AF9013)...
[   12.343650] mxl5007t 13-00c0: creating new instance
[   12.346003] mxl5007t_get_chip_id: unknown rev (3f)
[   12.346156] mxl5007t_get_chip_id: MxL5007T detected @ 13-00c0
[   12.350371] usb 1-2: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[   12.350649] DVB: registering new adapter (Afatech AF9015 reference design)
[   12.553632] i2c i2c-13: af9013: found a 'Afatech AF9013' in warm state
[   12.557256] i2c i2c-13: af9013: firmware version 5.1.0.0
[   12.563779] usb 1-2: DVB: registering adapter 1 frontend 0 (Afatech AF9013)...
[   12.564554] mxl5007t 13-00c0: attaching existing instance
[   12.567004] usb 1-2: dvb_usb_af9015: command failed=1
[   12.567555] mxl5007t_soft_reset: 521: failed!
[   12.569745] mxl5007t_attach: error -121 on line 907
[   12.571231] usbcore: registered new interface driver dvb_usb_af9015
Quoted 7 lines
$ lsdvb

lsdvb: Simple utility to list PCI/PCIe DVB devices
Version: 0.0.4
Copyright (C) Manu Abraham
$

Afatech AF9015 reference design:

Quoted 10 lines

3.18.12-200.fc21.x86_64 - OK

3.19.7-200.fc21.x86_64 - KO
4.0.2-200.fc21.x86_64 - KO
4.1.0-0.rc2.git3.1.fc23.x86_64 - KO

If you have a patch to test, shout loudly.

Quoted 9 lines

Looks like the same bug:
AVerMedia HD Volar (A867) - Afatech AF9033
http://forum.sifteam.eu/sifbox-by-sif-team/125122-kernel-3-19-a867-xgaz-dove.html

http://git.linuxtv.org/cgit.cgi/media_build.git - no positive effect.

Ho ho ho

It seems the 'lsdvb' is what made the device unusable after re/boot.
Of course this applies to kernel >= 3.19.x
The device has to be unplugged and after a minute or two plugged back to be usable again.

$ lsdvb

lsdvb: Simple utility to list PCI/PCIe DVB devices
Version: 0.0.4
Copyright (C) Manu Abraham

usb (5:0 -868620712:32665) on PCI Domain:-874755276 Bus:32665 Device:2098 Function:0

	DEVICE:0 ADAPTER:0 FRONTEND:0 (Afatech AF9013) 
		 FE_OFDM Fmin=174MHz Fmax=862MHz
	DEVICE:0 ADAPTER:1 FRONTEND:0 (Afatech AF9013) 
		 FE_OFDM Fmin=174MHz Fmax=862MHz
Quoted 12 lines
$ dmesg
[   80.332837] usb 2-2: dvb_usb_af9015: command failed=1
[   80.332857] i2c i2c-13: af9013: i2c wr failed=-5 reg=d607 len=1
[   80.337837] usb 2-2: dvb_usb_af9015: command failed=1
[   80.337848] mxl5007t_write_reg: 472: failed!
[   80.337853] mxl5007t_sleep: error -121 on line 709
[   80.338324] usb 2-2: dvb_usb_af9015: command failed=1
[   80.338328] mxl5007t_write_reg: 472: failed!
[   80.338332] mxl5007t_sleep: error -121 on line 711

Furthermore, it is sufficient to re/boot to the latest kernels, and the device is K.O. again,

e.g.

# modinfo -n mxl5007t
/lib/modules/4.1.0-0.rc3.git0.1.fc23.x86_64+debug/kernel/drivers/media/tuners/mxl5007t.ko.xz

...

[   13.874536] i2c i2c-13: af9013: found a 'Afatech AF9013' in warm state
[   13.878031] i2c i2c-13: af9013: firmware version 5.1.0.0
[   13.884691] usb 1-2: DVB: registering adapter 1 frontend 0 (Afatech AF9013)...
[   13.884942] mxl5007t 13-00c0: attaching existing instance
[   13.887166] usb 1-2: dvb_usb_af9015: command failed=1
[   13.887179] mxl5007t_soft_reset: 521: failed!
[   13.888780] mxl5007t_attach: error -121 on line 907
[   13.897808] usbcore: registered new interface driver dvb_usb_af9015

...

# ls -al /dev/dvb
ls: cannot access /dev/dvb: No such file or directory

Keep in mind, this time it has nothing to do with 'lsdvb',

# lsdvb
-bash: /bin/lsdvb: Permission denied
#5 lore raw

Re: dvb_usb_af9015: command failed=1 _ kernel >= 4.1.x

Quoted 120 lines · poma
Quoted 87 lines · poma
Quoted 59 lines · poma
Quoted 47 lines · poma
Quoted 35 lines · poma
[    0.000000] Linux version 4.0.2-200.fc21.x86_64 ...
[    0.870875] usb 1-2: new high-speed USB device number 2 using ehci-pci
[    0.990286] usb 1-2: New USB device found, idVendor=15a4, idProduct=9016
[    0.992575] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[    0.994859] usb 1-2: Product: DVB-T 2
[    1.001398] usb 1-2: Manufacturer: Afatech
[    1.003555] usb 1-2: SerialNumber: 010101010600001
[    1.009194] Afatech DVB-T 2: Fixing fullspeed to highspeed interval: 10 -> 7
[    1.011694] input: Afatech DVB-T 2 as /devices/pci0000:00/0000:00:02.1/usb1/1-2/1-2:1.1/0003:15A4:9016.0001/input/input5
[    1.066814] hid-generic 0003:15A4:9016.0001: input,hidraw0: USB HID v1.01 Keyboard [Afatech DVB-T 2] on usb-0000:00:02.1-2/input1
[   11.997119] usb 1-2: dvb_usb_v2: found a 'Afatech AF9015 reference design' in warm state
[   12.206778] usb 1-2: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[   12.207412] DVB: registering new adapter (Afatech AF9015 reference design)
[   12.286137] i2c i2c-13: af9013: firmware version 5.1.0.0
[   12.289121] usb 1-2: DVB: registering adapter 0 frontend 0 (Afatech AF9013)...
[   12.343650] mxl5007t 13-00c0: creating new instance
[   12.346003] mxl5007t_get_chip_id: unknown rev (3f)
[   12.346156] mxl5007t_get_chip_id: MxL5007T detected @ 13-00c0
[   12.350371] usb 1-2: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[   12.350649] DVB: registering new adapter (Afatech AF9015 reference design)
[   12.553632] i2c i2c-13: af9013: found a 'Afatech AF9013' in warm state
[   12.557256] i2c i2c-13: af9013: firmware version 5.1.0.0
[   12.563779] usb 1-2: DVB: registering adapter 1 frontend 0 (Afatech AF9013)...
[   12.564554] mxl5007t 13-00c0: attaching existing instance
[   12.567004] usb 1-2: dvb_usb_af9015: command failed=1
[   12.567555] mxl5007t_soft_reset: 521: failed!
[   12.569745] mxl5007t_attach: error -121 on line 907
[   12.571231] usbcore: registered new interface driver dvb_usb_af9015
Quoted 7 lines
$ lsdvb

lsdvb: Simple utility to list PCI/PCIe DVB devices
Version: 0.0.4
Copyright (C) Manu Abraham
$

Afatech AF9015 reference design:

Quoted 10 lines

3.18.12-200.fc21.x86_64 - OK

3.19.7-200.fc21.x86_64 - KO
4.0.2-200.fc21.x86_64 - KO
4.1.0-0.rc2.git3.1.fc23.x86_64 - KO

If you have a patch to test, shout loudly.

Quoted 9 lines

Looks like the same bug:
AVerMedia HD Volar (A867) - Afatech AF9033
http://forum.sifteam.eu/sifbox-by-sif-team/125122-kernel-3-19-a867-xgaz-dove.html

http://git.linuxtv.org/cgit.cgi/media_build.git - no positive effect.

Ho ho ho

It seems the 'lsdvb' is what made the device unusable after re/boot.
Of course this applies to kernel >= 3.19.x
The device has to be unplugged and after a minute or two plugged back to be usable again.

$ lsdvb

lsdvb: Simple utility to list PCI/PCIe DVB devices
Version: 0.0.4
Copyright (C) Manu Abraham

usb (5:0 -868620712:32665) on PCI Domain:-874755276 Bus:32665 Device:2098 Function:0

	DEVICE:0 ADAPTER:0 FRONTEND:0 (Afatech AF9013)
		 FE_OFDM Fmin=174MHz Fmax=862MHz
	DEVICE:0 ADAPTER:1 FRONTEND:0 (Afatech AF9013)
		 FE_OFDM Fmin=174MHz Fmax=862MHz
Quoted 12 lines
$ dmesg
[   80.332837] usb 2-2: dvb_usb_af9015: command failed=1
[   80.332857] i2c i2c-13: af9013: i2c wr failed=-5 reg=d607 len=1
[   80.337837] usb 2-2: dvb_usb_af9015: command failed=1
[   80.337848] mxl5007t_write_reg: 472: failed!
[   80.337853] mxl5007t_sleep: error -121 on line 709
[   80.338324] usb 2-2: dvb_usb_af9015: command failed=1
[   80.338328] mxl5007t_write_reg: 472: failed!
[   80.338332] mxl5007t_sleep: error -121 on line 711

Furthermore, it is sufficient to re/boot to the latest kernels, and the device is K.O. again,

e.g.

# modinfo -n mxl5007t
/lib/modules/4.1.0-0.rc3.git0.1.fc23.x86_64+debug/kernel/drivers/media/tuners/mxl5007t.ko.xz

...

[   13.874536] i2c i2c-13: af9013: found a 'Afatech AF9013' in warm state
[   13.878031] i2c i2c-13: af9013: firmware version 5.1.0.0
[   13.884691] usb 1-2: DVB: registering adapter 1 frontend 0 (Afatech AF9013)...
[   13.884942] mxl5007t 13-00c0: attaching existing instance
[   13.887166] usb 1-2: dvb_usb_af9015: command failed=1
[   13.887179] mxl5007t_soft_reset: 521: failed!
[   13.888780] mxl5007t_attach: error -121 on line 907
[   13.897808] usbcore: registered new interface driver dvb_usb_af9015

...

Quoted 8 lines
# ls -al /dev/dvb
ls: cannot access /dev/dvb: No such file or directory

Keep in mind, this time it has nothing to do with 'lsdvb',

# lsdvb
-bash: /bin/lsdvb: Permission denied

It is that commit which causes the problem:
commit fe4860af002a4516dd878f7297b61e186c475b35
[media] [PATH,1/2] mxl5007 move reset to attach

... but I am pretty sure actual root of cause something else. Likely your second tuner chip is on reset/powered off and due to that it does not answer. I have almost similar device which works (DigitalNow TinyTwin).

Maybe I should try to test which are that tuner GPIO reset lines... but I am a bit lazy :/

regards
Antti

Signature · 1 line
http://palosaari.fi/
author
#6 lore raw

Re: dvb_usb_af9015: command failed=1 _ kernel >= 4.1.x

Quoted 138 lines · Antti Palosaari
Quoted 120 lines · poma
Quoted 87 lines · poma
Quoted 59 lines · poma
Quoted 47 lines · poma
Quoted 35 lines · poma
[    0.000000] Linux version 4.0.2-200.fc21.x86_64 ...
[    0.870875] usb 1-2: new high-speed USB device number 2 using ehci-pci
[    0.990286] usb 1-2: New USB device found, idVendor=15a4, idProduct=9016
[    0.992575] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[    0.994859] usb 1-2: Product: DVB-T 2
[    1.001398] usb 1-2: Manufacturer: Afatech
[    1.003555] usb 1-2: SerialNumber: 010101010600001
[    1.009194] Afatech DVB-T 2: Fixing fullspeed to highspeed interval: 10 -> 7
[    1.011694] input: Afatech DVB-T 2 as /devices/pci0000:00/0000:00:02.1/usb1/1-2/1-2:1.1/0003:15A4:9016.0001/input/input5
[    1.066814] hid-generic 0003:15A4:9016.0001: input,hidraw0: USB HID v1.01 Keyboard [Afatech DVB-T 2] on usb-0000:00:02.1-2/input1
[   11.997119] usb 1-2: dvb_usb_v2: found a 'Afatech AF9015 reference design' in warm state
[   12.206778] usb 1-2: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[   12.207412] DVB: registering new adapter (Afatech AF9015 reference design)
[   12.286137] i2c i2c-13: af9013: firmware version 5.1.0.0
[   12.289121] usb 1-2: DVB: registering adapter 0 frontend 0 (Afatech AF9013)...
[   12.343650] mxl5007t 13-00c0: creating new instance
[   12.346003] mxl5007t_get_chip_id: unknown rev (3f)
[   12.346156] mxl5007t_get_chip_id: MxL5007T detected @ 13-00c0
[   12.350371] usb 1-2: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[   12.350649] DVB: registering new adapter (Afatech AF9015 reference design)
[   12.553632] i2c i2c-13: af9013: found a 'Afatech AF9013' in warm state
[   12.557256] i2c i2c-13: af9013: firmware version 5.1.0.0
[   12.563779] usb 1-2: DVB: registering adapter 1 frontend 0 (Afatech AF9013)...
[   12.564554] mxl5007t 13-00c0: attaching existing instance
[   12.567004] usb 1-2: dvb_usb_af9015: command failed=1
[   12.567555] mxl5007t_soft_reset: 521: failed!
[   12.569745] mxl5007t_attach: error -121 on line 907
[   12.571231] usbcore: registered new interface driver dvb_usb_af9015
Quoted 7 lines
$ lsdvb

lsdvb: Simple utility to list PCI/PCIe DVB devices
Version: 0.0.4
Copyright (C) Manu Abraham
$

Afatech AF9015 reference design:

Quoted 10 lines

3.18.12-200.fc21.x86_64 - OK

3.19.7-200.fc21.x86_64 - KO
4.0.2-200.fc21.x86_64 - KO
4.1.0-0.rc2.git3.1.fc23.x86_64 - KO

If you have a patch to test, shout loudly.

Quoted 9 lines

Looks like the same bug:
AVerMedia HD Volar (A867) - Afatech AF9033
http://forum.sifteam.eu/sifbox-by-sif-team/125122-kernel-3-19-a867-xgaz-dove.html

http://git.linuxtv.org/cgit.cgi/media_build.git - no positive effect.

Ho ho ho

It seems the 'lsdvb' is what made the device unusable after re/boot.
Of course this applies to kernel >= 3.19.x
The device has to be unplugged and after a minute or two plugged back to be usable again.

$ lsdvb

lsdvb: Simple utility to list PCI/PCIe DVB devices
Version: 0.0.4
Copyright (C) Manu Abraham

usb (5:0 -868620712:32665) on PCI Domain:-874755276 Bus:32665 Device:2098 Function:0

	DEVICE:0 ADAPTER:0 FRONTEND:0 (Afatech AF9013)
		 FE_OFDM Fmin=174MHz Fmax=862MHz
	DEVICE:0 ADAPTER:1 FRONTEND:0 (Afatech AF9013)
		 FE_OFDM Fmin=174MHz Fmax=862MHz
Quoted 12 lines
$ dmesg
[   80.332837] usb 2-2: dvb_usb_af9015: command failed=1
[   80.332857] i2c i2c-13: af9013: i2c wr failed=-5 reg=d607 len=1
[   80.337837] usb 2-2: dvb_usb_af9015: command failed=1
[   80.337848] mxl5007t_write_reg: 472: failed!
[   80.337853] mxl5007t_sleep: error -121 on line 709
[   80.338324] usb 2-2: dvb_usb_af9015: command failed=1
[   80.338328] mxl5007t_write_reg: 472: failed!
[   80.338332] mxl5007t_sleep: error -121 on line 711

Furthermore, it is sufficient to re/boot to the latest kernels, and the device is K.O. again,

e.g.

# modinfo -n mxl5007t
/lib/modules/4.1.0-0.rc3.git0.1.fc23.x86_64+debug/kernel/drivers/media/tuners/mxl5007t.ko.xz

...

[   13.874536] i2c i2c-13: af9013: found a 'Afatech AF9013' in warm state
[   13.878031] i2c i2c-13: af9013: firmware version 5.1.0.0
[   13.884691] usb 1-2: DVB: registering adapter 1 frontend 0 (Afatech AF9013)...
[   13.884942] mxl5007t 13-00c0: attaching existing instance
[   13.887166] usb 1-2: dvb_usb_af9015: command failed=1
[   13.887179] mxl5007t_soft_reset: 521: failed!
[   13.888780] mxl5007t_attach: error -121 on line 907
[   13.897808] usbcore: registered new interface driver dvb_usb_af9015

...

Quoted 8 lines
# ls -al /dev/dvb
ls: cannot access /dev/dvb: No such file or directory

Keep in mind, this time it has nothing to do with 'lsdvb',

# lsdvb
-bash: /bin/lsdvb: Permission denied

It is that commit which causes the problem:
commit fe4860af002a4516dd878f7297b61e186c475b35
[media] [PATH,1/2] mxl5007 move reset to attach

... but I am pretty sure actual root of cause something else. Likely your second tuner chip is on reset/powered off and due to that it does not answer. I have almost similar device which works (DigitalNow TinyTwin).

Quoted 6 lines

Maybe I should try to test which are that tuner GPIO reset lines... but I am a bit lazy :/

regards
Antti

Is a beer keg enough as bribe? :)
Just do not say that you drink juice.

After the reverting of all changes
http://git.linuxtv.org/cgit.cgi/media_tree.git/log/drivers/media/tuners/mxl5007t.c

device now survives both, 'lsdvb' and rc kernels.

Besides, despite all this, this device is already not working at its full potential.
One of the tuners can withstand a few hours and then hangs.
After that, in the application e.g. vlc is needed to select the second tuner and so continue to use the device. So this is actually a "single-seater" as Formula 1.
Vroom vroom!

 mxl5007t.c |   28 +++++-----------------------
 1 file changed, 5 insertions(+), 23 deletions(-)
drivers/media/tuners/mxl5007t.c +5 -23
@@ -374,6 +374,7 @@
 	mxl5007t_set_if_freq_bits(state, cfg->if_freq_hz, cfg->invert_if);
 	mxl5007t_set_xtal_freq_bits(state, cfg->xtal_freq_hz);
 
+	set_reg_bits(state->tab_init, 0x04, 0x01, cfg->loop_thru_enable);
 	set_reg_bits(state->tab_init, 0x03, 0x08, cfg->clk_out_enable << 3);
 	set_reg_bits(state->tab_init, 0x03, 0x07, cfg->clk_out_amp);
 
@@ -530,6 +531,10 @@
 	struct reg_pair_t *init_regs;
 	int ret;
 
+	ret = mxl5007t_soft_reset(state);
+	if (mxl_fail(ret))
+		goto fail;
+
 	/* calculate initialization reg array */
 	init_regs = mxl5007t_calc_init_regs(state, mode);
 
@@ -896,29 +901,6 @@
 		break;
 	}
 
-	if (fe->ops.i2c_gate_ctrl)
-		fe->ops.i2c_gate_ctrl(fe, 1);
-
-	ret = mxl5007t_soft_reset(state);
-
-	if (fe->ops.i2c_gate_ctrl)
-		fe->ops.i2c_gate_ctrl(fe, 0);
-
-	if (mxl_fail(ret))
-		goto fail;
-
-	if (fe->ops.i2c_gate_ctrl)
-		fe->ops.i2c_gate_ctrl(fe, 1);
-
-	ret = mxl5007t_write_reg(state, 0x04,
-		state->config->loop_thru_enable);
-
-	if (fe->ops.i2c_gate_ctrl)
-		fe->ops.i2c_gate_ctrl(fe, 0);
-
-	if (mxl_fail(ret))
-		goto fail;
-
 	fe->tuner_priv = state;
 
 	mutex_unlock(&mxl5007t_list_mutex);
$ modinfo mxl5007t
filename:       /lib/modules/4.1.0-0.rc3.git1.1.fc23.x86_64/updates/mxl5007t.ko
version:        0.2
license:        GPL
author:         Michael Krufky <[email protected]>
description:    MaxLinear MxL5007T Silicon IC tuner driver
srcversion:     72D27DB6EF6CEC612700FB9
depends:        
intree:         Y
vermagic:       4.1.0-0.rc3.git1.1.fc23.x86_64 SMP mod_unload 
parm:           debug:set debug level (int)
$ dmesg
[    1.114202] usb 1-2: new high-speed USB device number 2 using ehci-pci
[    1.235071] usb 1-2: New USB device found, idVendor=15a4, idProduct=9016
[    1.237463] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[    1.239831] usb 1-2: Product: DVB-T 2
[    1.242163] usb 1-2: Manufacturer: Afatech
[    1.244422] usb 1-2: SerialNumber: 010101010600001
[    1.251607] Afatech DVB-T 2: Fixing fullspeed to highspeed interval: 10 -> 7
[    1.254602] input: Afatech DVB-T 2 as /devices/pci0000:00/0000:00:02.1/usb1/1-2/1-2:1.1/0003:15A4:9016.0001/input/input5
[    1.311052] hid-generic 0003:15A4:9016.0001: input,hidraw0: USB HID v1.01 Keyboard [Afatech DVB-T 2] on usb-0000:00:02.1-2/input1
[   14.326420] usb 1-2: dvb_usb_v2: found a 'Afatech AF9015 reference design' in warm state
[   14.563618] usb 1-2: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[   14.563854] DVB: registering new adapter (Afatech AF9015 reference design)
[   14.622564] usb 1-2: DVB: registering adapter 0 frontend 0 (Afatech AF9013)...
[   14.659556] mxl5007t: module verification failed: signature and/or required key missing - tainting kernel
[   14.660903] mxl5007t 13-00c0: creating new instance
[   14.663714] mxl5007t_get_chip_id: unknown rev (3f)
[   14.663727] mxl5007t_get_chip_id: MxL5007T detected @ 13-00c0
[   14.664450] usb 1-2: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[   14.664603] DVB: registering new adapter (Afatech AF9015 reference design)
[   14.882505] usb 1-2: DVB: registering adapter 1 frontend 0 (Afatech AF9013)...
[   14.883176] mxl5007t 13-00c0: attaching existing instance
[   14.905227] input: Afatech AF9015 reference design as /devices/pci0000:00/0000:00:02.1/usb1/1-2/rc/rc0/input14
[   14.907885] rc0: Afatech AF9015 reference design as /devices/pci0000:00/0000:00:02.1/usb1/1-2/rc/rc0
[   14.907917] usb 1-2: dvb_usb_v2: schedule remote query interval to 500 msecs
[   14.908170] usb 1-2: dvb_usb_v2: 'Afatech AF9015 reference design' successfully initialized and connected
[   14.908490] usbcore: registered new interface driver dvb_usb_af9015
$ lsdvb 

lsdvb: Simple utility to list PCI/PCIe DVB devices
Version: 0.0.4
Copyright (C) Manu Abraham

usb (5:0 -956221864:32726) on PCI Domain:-962356428 Bus:32726 Device:2098 Function:0

	DEVICE:0 ADAPTER:0 FRONTEND:0 (Afatech AF9013) 
		 FE_OFDM Fmin=174MHz Fmax=862MHz
	DEVICE:0 ADAPTER:1 FRONTEND:0 (Afatech AF9013) 
		 FE_OFDM Fmin=174MHz Fmax=862MHz
$ dmesg
[  306.258474] usb 1-2: dvb_usb_af9015: command failed=1
[  306.258500] i2c i2c-13: af9013: i2c wr failed=-5 reg=d607 len=1
[  306.264805] usb 1-2: dvb_usb_af9015: command failed=1
[  306.264819] mxl5007t_write_reg: 473: failed!
[  306.264826] mxl5007t_sleep: error -121 on line 714
[  306.265298] usb 1-2: dvb_usb_af9015: command failed=1
[  306.265306] mxl5007t_write_reg: 473: failed!
[  306.265309] mxl5007t_sleep: error -121 on line 716
#7 lore raw

Re: dvb_usb_af9015: command failed=1 _ kernel >= 4.1.x

Quoted 11 lines · poma
Quoted 4 lines · Antti Palosaari
Quoted 3 lines · poma
Quoted 2 lines · poma
Quoted 1 line · poma

On 08.05.2015 12:59, poma wrote:

Is a beer keg enough as bribe? :)
Just do not say that you drink juice.

After the reverting of all changes
http://git.linuxtv.org/cgit.cgi/media_tree.git/log/drivers/media/tuners/mxl5007t.c

Quoted 7 lines

device now survives both, 'lsdvb' and rc kernels.

Besides, despite all this, this device is already not working at its full potential.
One of the tuners can withstand a few hours and then hangs.
After that, in the application e.g. vlc is needed to select the second tuner and so continue to use the device. So this is actually a "single-seater" as Formula 1.
Vroom vroom!

try that
http://git.linuxtv.org/cgit.cgi/anttip/media_tree.git/commit/?h=af9015_mxl5007t_1

Antti

Signature · 1 line
http://palosaari.fi/
author
#8 lore raw

Re: dvb_usb_af9015: command failed=1 _ kernel >= 4.1.x

Quoted 22 lines · Antti Palosaari
Quoted 11 lines · poma
Quoted 4 lines · Antti Palosaari
Quoted 3 lines · poma
Quoted 2 lines · poma
Quoted 1 line · poma

On 08.05.2015 12:59, poma wrote:

Is a beer keg enough as bribe? :)
Just do not say that you drink juice.

After the reverting of all changes
http://git.linuxtv.org/cgit.cgi/media_tree.git/log/drivers/media/tuners/mxl5007t.c

Quoted 7 lines

device now survives both, 'lsdvb' and rc kernels.

Besides, despite all this, this device is already not working at its full potential.
One of the tuners can withstand a few hours and then hangs.
After that, in the application e.g. vlc is needed to select the second tuner and so continue to use the device. So this is actually a "single-seater" as Formula 1.
Vroom vroom!

Quoted 5 lines

try that
http://git.linuxtv.org/cgit.cgi/anttip/media_tree.git/commit/?h=af9015_mxl5007t_1

Antti

Thanks.
For now, I have noticed, unlike before the EIT program data are updated in full and promptly.

I'll be back in a week.

author
#9 lore raw

Re: dvb_usb_af9015: command failed=1 _ kernel >= 4.1.x

Quoted 1 line · poma

On 17.05.2015 01:07, Antti Palosaari wrote:

...

Quoted 12 lines
Quoted 5 lines

try that
http://git.linuxtv.org/cgit.cgi/anttip/media_tree.git/commit/?h=af9015_mxl5007t_1

Antti

Thanks.
For now, I have noticed, unlike before the EIT program data are updated in full and promptly.

I'll be back in a week.

No need to continue to test this patch because this is repeated:

BOOT from S5/Soft Off:

[    1.007886] usb 1-2: Product: DVB-T 2
[    1.032430] Afatech DVB-T 2: Fixing fullspeed to highspeed interval: 10 -> 7
[    1.035255] input: Afatech DVB-T 2 as /devices/pci0000:00/0000:00:02.1/usb1/1-2/1-2:1.1/0003:15A4:9016.0001/input/input5
[    1.089852] hid-generic 0003:15A4:9016.0001: input,hidraw0: USB HID v1.01 Keyboard [Afatech DVB-T 2] on usb-0000:00:02.1-2/input1
[   13.353105] usb 1-2: dvb_usb_v2: found a 'Afatech AF9015 reference design' in warm state
[   13.557671] usb 1-2: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[   13.558315] DVB: registering new adapter (Afatech AF9015 reference design)
[   13.726582] usb 1-2: DVB: registering adapter 0 frontend 0 (Afatech AF9013)...
[   13.814649] mxl5007t 13-00c0: creating new instance
[   13.817588] mxl5007t_get_chip_id: MxL5007T.v4 detected @ 13-00c0
[   13.820460] mxl5007t_get_chip_id: MxL5007T.v4 detected @ 13-00c0
[   13.824594] usb 1-2: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[   13.825234] DVB: registering new adapter (Afatech AF9015 reference design)
[   14.040582] usb 1-2: DVB: registering adapter 1 frontend 0 (Afatech AF9013)...
[   14.040921] mxl5007t 13-00c0: attaching existing instance
[   14.043201] usb 1-2: dvb_usb_af9015: command failed=1
[   14.043429] mxl5007t_read_reg: 505: failed!
[   14.043656] mxl5007t_get_chip_id: error -121 on line 824
[   14.043880] mxl5007t_get_chip_id: unable to identify device @ 13-00c0
[   14.044698] usb 1-2: dvb_usb_af9015: command failed=1
[   14.044911] mxl5007t_soft_reset: 527: failed!
[   14.046841] mxl5007t_attach: error -121 on line 914
[   14.051434] usbcore: registered new interface driver dvb_usb_af9015
$ ls /dev/dvb/
ls: cannot access /dev/dvb/: No such file or directory
# modprobe -rv dvb_usb_af9015 mxl5007t
rmmod dvb_usb_af9015
rmmod dvb_usb_v2
rmmod rc_core
rmmod dvb_core
rmmod mxl5007t
# modprobe -v dvb_usb_af9015
insmod /lib/modules/4.0.4-502.fc21.x86_64/kernel/drivers/media/rc/rc-core.ko.xz 
insmod /lib/modules/4.0.4-502.fc21.x86_64/kernel/drivers/media/dvb-core/dvb-core.ko.xz 
insmod /lib/modules/4.0.4-502.fc21.x86_64/kernel/drivers/media/usb/dvb-usb-v2/dvb_usb_v2.ko.xz 
insmod /lib/modules/4.0.4-502.fc21.x86_64/kernel/drivers/media/usb/dvb-usb-v2/dvb-usb-af9015.ko.xz 
[ 2101.659729] usbcore: deregistering interface driver dvb_usb_af9015
[ 2117.056136] usb 1-2: dvb_usb_v2: found a 'Afatech AF9015 reference design' in warm state
[ 2117.265520] usb 1-2: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[ 2117.265607] DVB: registering new adapter (Afatech AF9015 reference design)
[ 2117.268348] i2c i2c-13: af9013: firmware version 5.1.0.0
[ 2117.274958] usb 1-2: DVB: registering adapter 0 frontend 0 (Afatech AF9013)...
[ 2117.280031] mxl5007t 13-00c0: creating new instance
[ 2117.281700] mxl5007t_get_chip_id: MxL5007T.v4 detected @ 13-00c0
[ 2117.284211] mxl5007t_get_chip_id: MxL5007T.v4 detected @ 13-00c0
[ 2117.287208] usb 1-2: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[ 2117.287245] DVB: registering new adapter (Afatech AF9015 reference design)
[ 2117.493132] i2c i2c-13: af9013: found a 'Afatech AF9013' in warm state
[ 2117.496887] i2c i2c-13: af9013: firmware version 5.1.0.0
[ 2117.504373] usb 1-2: DVB: registering adapter 1 frontend 0 (Afatech AF9013)...
[ 2117.504664] mxl5007t 13-00c0: attaching existing instance
[ 2117.506848] usb 1-2: dvb_usb_af9015: command failed=1
[ 2117.506858] mxl5007t_read_reg: 505: failed!
[ 2117.506864] mxl5007t_get_chip_id: error -121 on line 824
[ 2117.506868] mxl5007t_get_chip_id: unable to identify device @ 13-00c0
[ 2117.507344] usb 1-2: dvb_usb_af9015: command failed=1
[ 2117.507350] mxl5007t_soft_reset: 527: failed!
[ 2117.509007] mxl5007t_attach: error -121 on line 914
[ 2117.511150] usbcore: registered new interface driver dvb_usb_af9015
$ ls /dev/dvb/
ls: cannot access /dev/dvb/: No such file or directory

REBOOT:

[    1.049265] usb 1-2: Product: DVB-T 2
[    1.067810] Afatech DVB-T 2: Fixing fullspeed to highspeed interval: 10 -> 7
[    1.068145] input: Afatech DVB-T 2 as /devices/pci0000:00/0000:00:02.1/usb1/1-2/1-2:1.1/0003:15A4:9016.0001/input/input5
[    1.118889] hid-generic 0003:15A4:9016.0001: input,hidraw0: USB HID v1.01 Keyboard [Afatech DVB-T 2] on usb-0000:00:02.1-2/input1
[   12.023590] usb 1-2: dvb_usb_v2: found a 'Afatech AF9015 reference design' in warm state
[   12.225419] usb 1-2: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[   12.225524] DVB: registering new adapter (Afatech AF9015 reference design)
[   12.238958] usb 1-2: DVB: registering adapter 0 frontend 0 (Afatech AF9013)...
[   12.261783] mxl5007t 13-00c0: creating new instance
[   12.265081] mxl5007t_get_chip_id: MxL5007T.v4 detected @ 13-00c0
[   12.267236] mxl5007t_get_chip_id: MxL5007T.v4 detected @ 13-00c0
[   12.270335] usb 1-2: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[   12.270376] DVB: registering new adapter (Afatech AF9015 reference design)
[   12.484761] usb 1-2: DVB: registering adapter 1 frontend 0 (Afatech AF9013)...
[   12.485016] mxl5007t 13-00c0: attaching existing instance
[   12.487225] usb 1-2: dvb_usb_af9015: command failed=1
[   12.487251] mxl5007t_read_reg: 505: failed!
[   12.487266] mxl5007t_get_chip_id: error -121 on line 824
[   12.487281] mxl5007t_get_chip_id: unable to identify device @ 13-00c0
[   12.487716] usb 1-2: dvb_usb_af9015: command failed=1
[   12.487753] mxl5007t_soft_reset: 527: failed!
[   12.489363] mxl5007t_attach: error -121 on line 914
[   12.490589] usbcore: registered new interface driver dvb_usb_af9015
$ ls /dev/dvb
ls: cannot access /dev/dvb: No such file or directory
$ uname -r
4.0.4-502.fc21.x86_64
author
#10 lore raw

Re: dvb_usb_af9015: command failed=1 _ kernel >= 4.1.x

If it is not taken into account the already known problem of unreliable operation of the first tuner of the two, the device works reliably within kernel 4.0.4 with mxl5007t.ko reverted to
http://git.linuxtv.org/cgit.cgi/media_tree.git/commit/drivers/media/tuners/mxl5007t.c?id=ccae7af
that is in the same state as is in the longterm kernel - 3.18.14,
which is in correspondence with the aforementioned results.

author
#11 lore raw

Re: dvb_usb_af9015: command failed=1 _ kernel >= 4.1.x

Quoted 8 lines · poma

If it is not taken into account the already known problem of unreliable operation of the first tuner of the two, the device works reliably within kernel 4.0.4 with mxl5007t.ko reverted to
http://git.linuxtv.org/cgit.cgi/media_tree.git/commit/drivers/media/tuners/mxl5007t.c?id=ccae7af
that is in the same state as is in the longterm kernel - 3.18.14,
which is in correspondence with the aforementioned results.

http://git.linuxtv.org/cgit.cgi/media_tree.git/log/drivers/media/tuners/mxl5007t.c

5. 2014-11-11 [media] [PATH,2/2] mxl5007 move loop_thru to attach
02f9cf9 Jose Alberto Reguero

4. 2014-11-11 [media] [PATH,1/2] mxl5007 move reset to attach
fe4860a Jose Alberto Reguero

3. 2013-02-08 Revert "[media] [PATH,1/2] mxl5007 move reset to attach"
db5c05b Mauro Carvalho Chehab

2. 2013-02-08 [media] [PATH,1/2] mxl5007 move reset to attach
0a32377 Jose Alberto Reguero

1. 2012-08-14 [media] common: move media/common/tuners to media/tuners
ccae7af Mauro Carvalho Chehab

This is the conclusion after extensive testing,
commitas 5. 4. and 2. produce:

mxl5007t_soft_reset: 521: failed!
mxl5007t_attach: error -121 on line 907

causing the device completely unusable - AF9015 DVB-T USB2.0 stick

Do you need a patch to revert to commita 3. or 1. - again for the third time, or you have a better solution?