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cx23885[0]: videobuf_dvb_register_frontend failed (errno = -12)

DISCUSSION James 3 participants 4 messages Oct 26, 2011 – Jan 12, 2012 Media (V4L/DVB)

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James

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#0 lore raw

*I compiled kernel-3.1 and now my tuner card fails:

Quoted 7 lines
$ dmesg | grep cx
cx23885 driver version 0.0.3 loaded
cx23885 0000:03:00.0: PCI INT A -> Link[LNEA] -> GSI 16 (level, low) 
-> IRQ 16
CORE cx23885[0]: subsystem: 0070:7911, board: Hauppauge WinTV-HVR1250 [card=3,autodetected]
cx23885[0]: hauppauge eeprom: model=79571
cx23885_dvb_register() allocating 1 frontend(s)
Quoted 8 lines
cx23885[0]: cx23885 based dvb card
DVB: registering new adapter (cx23885[0])
cx23885[0]: videobuf_dvb_register_frontend failed (errno = -12)
cx23885_dvb_register() dvb_register failed err = -22
cx23885_dev_setup() Failed to register dvb on VID_C
cx23885_dev_checkrevision() Hardware revision = 0xb0
cx23885[0]/0: found at 0000:03:00.0, rev: 2, irq: 16, latency: 0, mmio: 0xf9e00000
cx23885 0000:03:00.0: setting latency timer to 64

**cx23885[0]: videobuf_dvb_register_frontend failed (errno = -12) **Where can I look up what errno -12 is?

*

#1 lore raw
Quoted 20 lines · James

*I compiled kernel-3.1 and now my tuner card fails:

Quoted 9 lines
$ dmesg | grep cx
cx23885 driver version 0.0.3 loaded
cx23885 0000:03:00.0: PCI INT A -> Link[LNEA] -> GSI 16 (level, low) ->
IRQ 16
CORE cx23885[0]: subsystem: 0070:7911, board: Hauppauge WinTV-HVR1250
[card=3,autodetected]
cx23885[0]: hauppauge eeprom: model=79571
cx23885_dvb_register() allocating 1 frontend(s)
cx23885[0]: cx23885 based dvb card
Quoted 8 lines
DVB: registering new adapter (cx23885[0])
cx23885[0]: videobuf_dvb_register_frontend failed (errno = -12)
cx23885_dvb_register() dvb_register failed err = -22
cx23885_dev_setup() Failed to register dvb on VID_C
cx23885_dev_checkrevision() Hardware revision = 0xb0
cx23885[0]/0: found at 0000:03:00.0, rev: 2, irq: 16, latency: 0, mmio:
0xf9e00000
cx23885 0000:03:00.0: setting latency timer to 64
Quoted 2 lines

**cx23885[0]: videobuf_dvb_register_frontend failed (errno = -12) **Where can I look up what errno  -12 is?

James,

This appears to be occurring on a cx88 board as well, suggesting some problem in the framework. It is being actively discussed in #linuxtv on freenode.

Devin

Signature · 2 lines
Devin J. Heitmueller - Kernel Labs
http://www.kernellabs.com
#3 lore raw
Quoted 2 lines · Markus Golser

I have the same Problem.
Did you find any solution?

Assuming you compiled your kernel from source, enable CONFIG_DVB_NET in your .config.

Devin

Signature · 2 lines
Devin J. Heitmueller - Kernel Labs
http://www.kernellabs.com