Udev detection broken?

DISCUSSION Artem Makhutov 3 participants 6 messages Sep 8, 2011 – Sep 15, 2011

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Artem Makhutov

author

2011-09-14 22:01 UTC #0 lore raw

Hello,

I am trying to setup ofono on my PC again, unfortunatly ofono does not pick up the connected huawei modem.

I have traced it down to plugins/udev.c - get_property function.

The udev rules seems to get ok, as I can see it in the udev logs:

UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:02.1/usb1/1-3
SUBSYSTEM=usb
DEVNAME=/dev/bus/usb/001/016
DEVTYPE=usb_device
DEVICE=/proc/bus/usb/001/016
PRODUCT=12d1/1001/0
TYPE=0/0/0
BUSNUM=001
DEVNUM=016
SEQNUM=9847
ID_VENDOR=HUAWEI_Technology
ID_VENDOR_ENC=HUAWEI\x20Technology
ID_VENDOR_ID=12d1
ID_MODEL=HUAWEI_Mobile
ID_MODEL_ENC=HUAWEI\x20Mobile
ID_MODEL_ID=1001
ID_REVISION=0000
ID_SERIAL=HUAWEI_Technology_HUAWEI_Mobile
ID_BUS=usb
ID_USB_INTERFACES=:ffffff:
OFONO_DRIVER=huawei
MAJOR=189
MINOR=15

But get_property can not find the "OFONO_DRIVER" property. It only find the properties below:

Sep 14 23:45:56 gandalf ofonod[19789]: plugins/udev.c:get_property() Name:UDEV_LOG
Sep 14 23:45:56 gandalf ofonod[19789]: plugins/udev.c:get_property() Name:DEVPATH
Sep 14 23:45:56 gandalf ofonod[19789]: plugins/udev.c:get_property() Name:MAJOR
Sep 14 23:45:56 gandalf ofonod[19789]: plugins/udev.c:get_property() Name:MINOR
Sep 14 23:45:56 gandalf ofonod[19789]: plugins/udev.c:get_property() Name:DEVNAME
Sep 14 23:45:56 gandalf ofonod[19789]: plugins/udev.c:get_property() Name:DEVTYPE
Sep 14 23:45:56 gandalf ofonod[19789]: plugins/udev.c:get_property() Name:DRIVER
Sep 14 23:45:56 gandalf ofonod[19789]: plugins/udev.c:get_property() Name:DEVICE
Sep 14 23:45:56 gandalf ofonod[19789]: plugins/udev.c:get_property() Name:PRODUCT
Sep 14 23:45:56 gandalf ofonod[19789]: plugins/udev.c:get_property() Name:TYPE
Sep 14 23:45:56 gandalf ofonod[19789]: plugins/udev.c:get_property() Name:BUSNUM
Sep 14 23:45:56 gandalf ofonod[19789]: plugins/udev.c:get_property() Name:DEVNUM
Sep 14 23:45:56 gandalf ofonod[19789]: plugins/udev.c:get_property() Name:SUBSYSTEM

Any ideas why it does not find some properties?

Thanks, Artem

Denis Kenzior

2011-09-08 08:49 UTC #1 lore raw

Hi Artem,

Quoted 7 lines · Artem Makhutov

Hello,
I am trying to setup ofono on my PC again, unfortunatly ofono does not pick up the connected huawei modem.
I have traced it down to plugins/udev.c - get_property function.

Please note that huawei detection is now being done by plugins/udevng.c.

Regards,
-Denis

Artem Makhutov

author

2011-09-15 18:03 UTC #2 lore raw

Hi,

Quoted 5 lines · Denis Kenzior

Hi Artem,
Quoted 2 lines · Artem Makhutov
Hello,

Quoted 7 lines

Quoted 5 lines
I am trying to setup ofono on my PC again, unfortunatly ofono does not pick up the connected huawei modem.
I have traced it down to plugins/udev.c - get_property function.
Please note that huawei detection is now being done by plugins/udevng.c.

Thanks, this is good to know.

Regards, Artem

Artem Makhutov

author

2011-09-15 07:48 UTC #3 lore raw

In reply to Artem Makhutov

Hi,

Quoted 4 lines · Artem Makhutov

Hello,
I am trying to setup ofono on my PC again, unfortunatly ofono does not pick up the connected huawei modem. [...]

I have done some more testing. Looks like the "OFONO_DRIVER=huawei" is getting removed somehow by udev.

With "udevadm monitor --property" I can see that OFONO_DRIVER=huawei was set for /devices/pci0000:00/0000:00:02.1/usb1/1-3 But "udevadm info --query=all --path=/devices/pci0000:00/0000:00:02.1/usb1/1-3" does not show it. Ofono also can't find it.

Any ideas that to do to trace down the problem?

Some logs are attached.

Thanks, Artem

gandalf ~ # udevadm info --query=all --path=/devices/pci0000:00/0000:00:02.1/usb1/1-3
P: /devices/pci0000:00/0000:00:02.1/usb1/1-3
N: bus/usb/001/003
E: UDEV_LOG=3
E: DEVPATH=/devices/pci0000:00/0000:00:02.1/usb1/1-3
E: MAJOR=189
E: MINOR=2
E: DEVNAME=/dev/bus/usb/001/003
E: DEVTYPE=usb_device
E: DRIVER=usb
E: DEVICE=/proc/bus/usb/001/003
E: PRODUCT=12d1/1001/0
E: TYPE=0/0/0
E: BUSNUM=001
E: DEVNUM=003
E: SUBSYSTEM=usb

ofonod[5682]: plugins/udev.c:add_modem() /devices/pci0000:00/0000:00:02.1/usb1/1-3 ofonod[5682]: plugins/udev.c:get_property() Name:UDEV_LOG - 3
ofonod[5682]: plugins/udev.c:get_property() Name:DEVPATH - /devices/pci0000:00/0000:00:02.1/usb1/1-3 ofonod[5682]: plugins/udev.c:get_property() Name:MAJOR - 189
ofonod[5682]: plugins/udev.c:get_property() Name:MINOR - 2
ofonod[5682]: plugins/udev.c:get_property() Name:DEVNAME - bus/usb/001/003 ofonod[5682]: plugins/udev.c:get_property() Name:DEVTYPE - usb_device
ofonod[5682]: plugins/udev.c:get_property() Name:DRIVER - usb
ofonod[5682]: plugins/udev.c:get_property() Name:DEVICE - /proc/bus/usb/001/003 ofonod[5682]: plugins/udev.c:get_property() Name:PRODUCT - 12d1/1001/0
ofonod[5682]: plugins/udev.c:get_property() Name:TYPE - 0/0/0
ofonod[5682]: plugins/udev.c:get_property() Name:BUSNUM - 001
ofonod[5682]: plugins/udev.c:get_property() Name:DEVNUM - 003
ofonod[5682]: plugins/udev.c:get_property() Name:SUBSYSTEM - usb

gandalf ~ # udevadm monitor --property
monitor will print the received events for:
UDEV - the event which udev sends out after rule processing KERNEL - the kernel uevent

KERNEL[1316072387.248612] add /devices/pci0000:00/0000:00:02.1/usb1/1-3 (usb)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:02.1/usb1/1-3
SUBSYSTEM=usb
DEVNAME=bus/usb/001/003
DEVTYPE=usb_device
DEVICE=/proc/bus/usb/001/003
PRODUCT=12d1/1001/0
TYPE=0/0/0
BUSNUM=001
DEVNUM=003
SEQNUM=2496
MAJOR=189
MINOR=2

KERNEL[1316072387.250047] add /devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.0 (usb)
UDEV_LOG=3
ACTION=add DEVPATH=/devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.0 SUBSYSTEM=usb
DEVTYPE=usb_interface DEVICE=/proc/bus/usb/001/003
PRODUCT=12d1/1001/0
TYPE=0/0/0
INTERFACE=255/255/255 MODALIAS=usb:v12D1p1001d0000dc00dsc00dp00icFFiscFFipFF SEQNUM=2497

KERNEL[1316072387.250143] add /devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.0/ttyUSB0 (usb-serial)
UDEV_LOG=3
ACTION=add DEVPATH=/devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.0/ttyUSB0 SUBSYSTEM=usb-serial
SEQNUM=2498

KERNEL[1316072387.250259] add /devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.0/ttyUSB0/tty/ttyUSB0 (tty)
UDEV_LOG=3
ACTION=add DEVPATH=/devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.0/ttyUSB0/tty/ttyUSB0 SUBSYSTEM=tty
DEVNAME=ttyUSB0
SEQNUM=2499
MAJOR=188
MINOR=0

KERNEL[1316072387.250305] add /devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.1 (usb)
UDEV_LOG=3
ACTION=add DEVPATH=/devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.1 SUBSYSTEM=usb
DEVTYPE=usb_interface DEVICE=/proc/bus/usb/001/003
PRODUCT=12d1/1001/0
TYPE=0/0/0
INTERFACE=255/255/255 MODALIAS=usb:v12D1p1001d0000dc00dsc00dp00icFFiscFFipFF SEQNUM=2500

KERNEL[1316072387.250451] add /devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.1/ttyUSB1 (usb-serial)
UDEV_LOG=3
ACTION=add DEVPATH=/devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.1/ttyUSB1 SUBSYSTEM=usb-serial
SEQNUM=2501

KERNEL[1316072387.250522] add /devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.1/ttyUSB1/tty/ttyUSB1 (tty)
UDEV_LOG=3
ACTION=add DEVPATH=/devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.1/ttyUSB1/tty/ttyUSB1 SUBSYSTEM=tty
DEVNAME=ttyUSB1
SEQNUM=2502
MAJOR=188
MINOR=1

KERNEL[1316072387.250600] add /devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.2 (usb)
UDEV_LOG=3
ACTION=add DEVPATH=/devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.2 SUBSYSTEM=usb
DEVTYPE=usb_interface DEVICE=/proc/bus/usb/001/003
PRODUCT=12d1/1001/0
TYPE=0/0/0
INTERFACE=255/255/255 MODALIAS=usb:v12D1p1001d0000dc00dsc00dp00icFFiscFFipFF SEQNUM=2503

KERNEL[1316072387.250682] add /devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.2/ttyUSB2 (usb-serial)
UDEV_LOG=3
ACTION=add DEVPATH=/devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.2/ttyUSB2 SUBSYSTEM=usb-serial
SEQNUM=2504

KERNEL[1316072387.250737] add /devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.2/ttyUSB2/tty/ttyUSB2 (tty)
UDEV_LOG=3
ACTION=add DEVPATH=/devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.2/ttyUSB2/tty/ttyUSB2 SUBSYSTEM=tty
DEVNAME=ttyUSB2
SEQNUM=2505
MAJOR=188
MINOR=2

KERNEL[1316072387.250805] add /devices/pci0000:00/0000:00:02.1/usb1/1-3/usb_device/usbdev1.3 (usb_device)
UDEV_LOG=3
ACTION=add DEVPATH=/devices/pci0000:00/0000:00:02.1/usb1/1-3/usb_device/usbdev1.3 SUBSYSTEM=usb_device
DEVNAME=usbdev1.3
SEQNUM=2506
MAJOR=189
MINOR=2

UDEV [1316072387.264152] add /devices/pci0000:00/0000:00:02.1/usb1/1-3 (usb)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:02.1/usb1/1-3
SUBSYSTEM=usb
DEVNAME=/dev/bus/usb/001/003
DEVTYPE=usb_device
DEVICE=/proc/bus/usb/001/003
PRODUCT=12d1/1001/0
TYPE=0/0/0
BUSNUM=001
DEVNUM=003
SEQNUM=2496
ID_VENDOR=HUAWEI_Technology
ID_VENDOR_ENC=HUAWEI\x20Technology
ID_VENDOR_ID=12d1
ID_MODEL=HUAWEI_Mobile
ID_MODEL_ENC=HUAWEI\x20Mobile
ID_MODEL_ID=1001
ID_REVISION=0000
ID_SERIAL=HUAWEI_Technology_HUAWEI_Mobile
ID_BUS=usb
ID_USB_INTERFACES=:ffffff:
OFONO_DRIVER=huawei
MAJOR=189
MINOR=2

UDEV [1316072387.264331] add /devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.0 (usb)
UDEV_LOG=3
ACTION=add DEVPATH=/devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.0 SUBSYSTEM=usb
DEVTYPE=usb_interface DEVICE=/proc/bus/usb/001/003
PRODUCT=12d1/1001/0
TYPE=0/0/0
INTERFACE=255/255/255 MODALIAS=usb:v12D1p1001d0000dc00dsc00dp00icFFiscFFipFF SEQNUM=2497

UDEV [1316072387.264423] add /devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.1 (usb)
UDEV_LOG=3
ACTION=add DEVPATH=/devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.1 SUBSYSTEM=usb
DEVTYPE=usb_interface DEVICE=/proc/bus/usb/001/003
PRODUCT=12d1/1001/0
TYPE=0/0/0
INTERFACE=255/255/255 MODALIAS=usb:v12D1p1001d0000dc00dsc00dp00icFFiscFFipFF SEQNUM=2500

UDEV [1316072387.265276] add /devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.0/ttyUSB0 (usb-serial)
UDEV_LOG=3
ACTION=add DEVPATH=/devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.0/ttyUSB0 SUBSYSTEM=usb-serial
SEQNUM=2498

UDEV [1316072387.265343] add /devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.1/ttyUSB1 (usb-serial)
UDEV_LOG=3
ACTION=add DEVPATH=/devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.1/ttyUSB1 SUBSYSTEM=usb-serial
SEQNUM=2501

UDEV [1316072387.265407] add /devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.2 (usb)
UDEV_LOG=3
ACTION=add DEVPATH=/devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.2 SUBSYSTEM=usb
DEVTYPE=usb_interface DEVICE=/proc/bus/usb/001/003
PRODUCT=12d1/1001/0
TYPE=0/0/0
INTERFACE=255/255/255 MODALIAS=usb:v12D1p1001d0000dc00dsc00dp00icFFiscFFipFF SEQNUM=2503

UDEV [1316072387.265485] add /devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.2/ttyUSB2 (usb-serial)
UDEV_LOG=3
ACTION=add DEVPATH=/devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.2/ttyUSB2 SUBSYSTEM=usb-serial
SEQNUM=2504

UDEV [1316072387.274275] add /devices/pci0000:00/0000:00:02.1/usb1/1-3/usb_device/usbdev1.3 (usb_device)
UDEV_LOG=3
ACTION=add DEVPATH=/devices/pci0000:00/0000:00:02.1/usb1/1-3/usb_device/usbdev1.3 SUBSYSTEM=usb_device
DEVNAME=/dev/usbdev1.3
SEQNUM=2506
MAJOR=189
MINOR=2

UDEV [1316072387.302043] add /devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.1/ttyUSB1/tty/ttyUSB1 (tty)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.1/ttyUSB1/tty/ttyUSB1
SUBSYSTEM=tty
DEVNAME=/dev/ttyUSB1
SEQNUM=2502
ID_PORT=0
ID_PATH=pci-0000:00:02.1-usb-0:3:1.1
ID_VENDOR=HUAWEI_Technology
ID_VENDOR_ENC=HUAWEI\x20Technology
ID_VENDOR_ID=12d1
ID_MODEL=HUAWEI_Mobile
ID_MODEL_ENC=HUAWEI\x20Mobile
ID_MODEL_ID=1001
ID_REVISION=0000
ID_SERIAL=HUAWEI_Technology_HUAWEI_Mobile
ID_TYPE=generic
ID_BUS=usb
ID_USB_INTERFACES=:ffffff:
ID_USB_INTERFACE_NUM=01
ID_USB_DRIVER=option
ID_IFACE=01
ID_VENDOR_FROM_DATABASE=Huawei Technologies Co., Ltd.
ID_MODEL_FROM_DATABASE=E620 USB Modem
MAJOR=188
MINOR=1
DEVLINKS=/dev/serial/by-path/pci-0000:00:02.1-usb-0:3:1.1-port0 /dev/serial/by-id/usb-HUAWEI_Technology_HUAWEI_Mobile-if01-port0

UDEV [1316072387.302301] add /devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.2/ttyUSB2/tty/ttyUSB2 (tty)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.2/ttyUSB2/tty/ttyUSB2
SUBSYSTEM=tty
DEVNAME=/dev/ttyUSB2
SEQNUM=2505
ID_PORT=0
ID_PATH=pci-0000:00:02.1-usb-0:3:1.2
ID_VENDOR=HUAWEI_Technology
ID_VENDOR_ENC=HUAWEI\x20Technology
ID_VENDOR_ID=12d1
ID_MODEL=HUAWEI_Mobile
ID_MODEL_ENC=HUAWEI\x20Mobile
ID_MODEL_ID=1001
ID_REVISION=0000
ID_SERIAL=HUAWEI_Technology_HUAWEI_Mobile
ID_TYPE=generic
ID_BUS=usb
ID_USB_INTERFACES=:ffffff:
ID_USB_INTERFACE_NUM=02
ID_USB_DRIVER=option
ID_IFACE=02
ID_VENDOR_FROM_DATABASE=Huawei Technologies Co., Ltd.
ID_MODEL_FROM_DATABASE=E620 USB Modem
OFONO_HUAWEI_TYPE=Pcui
MAJOR=188
MINOR=2
DEVLINKS=/dev/serial/by-path/pci-0000:00:02.1-usb-0:3:1.2-port0 /dev/serial/by-id/usb-HUAWEI_Technology_HUAWEI_Mobile-if02-port0

UDEV [1316072387.305689] add /devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.0/ttyUSB0/tty/ttyUSB0 (tty)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:02.1/usb1/1-3/1-3:1.0/ttyUSB0/tty/ttyUSB0
SUBSYSTEM=tty
DEVNAME=/dev/ttyUSB0
SEQNUM=2499
ID_PORT=0
ID_PATH=pci-0000:00:02.1-usb-0:3:1.0
ID_VENDOR=HUAWEI_Technology
ID_VENDOR_ENC=HUAWEI\x20Technology
ID_VENDOR_ID=12d1
ID_MODEL=HUAWEI_Mobile
ID_MODEL_ENC=HUAWEI\x20Mobile
ID_MODEL_ID=1001
ID_REVISION=0000
ID_SERIAL=HUAWEI_Technology_HUAWEI_Mobile
ID_TYPE=generic
ID_BUS=usb
ID_USB_INTERFACES=:ffffff:
ID_USB_INTERFACE_NUM=00
ID_USB_DRIVER=option
ID_IFACE=00
ID_VENDOR_FROM_DATABASE=Huawei Technologies Co., Ltd.
ID_MODEL_FROM_DATABASE=E620 USB Modem
OFONO_HUAWEI_TYPE=Modem
MAJOR=188
MINOR=0
DEVLINKS=/dev/serial/by-path/pci-0000:00:02.1-usb-0:3:1.0-port0 /dev/serial/by-id/usb-HUAWEI_Technology_HUAWEI_Mobile-if00-port0

Paolo Pellegrino

2011-09-15 14:33 UTC #4 lore raw

Hi Artem,

Il 15/09/2011 9.48, Artem Makhutov ha scritto:

Quoted 11 lines

Hi,
Quoted 4 lines · Artem Makhutov
Hello,
I am trying to setup ofono on my PC again, unfortunatly ofono does not pick up the connected huawei modem. [...]
I have done some more testing. Looks like the "OFONO_DRIVER=huawei" is getting removed somehow by udev.

Quoted 7 lines

With "udevadm monitor --property" I can see that OFONO_DRIVER=huawei was set for /devices/pci0000:00/0000:00:02.1/usb1/1-3 But "udevadm info --query=all --path=/devices/pci0000:00/0000:00:02.1/usb1/1-3" does not show it. Ofono also can't find it.
Any ideas that to do to trace down the problem?

We incurred in a similar problem some months ago, but we thought the issue was related to some specific udev library version we were using (v153 if I remember well).

Here is a patch we applied to ofono.rules to fix the problem, maybe it will solve your issue, too:

@@ -0,0 +1,25 @@
+diff --git a/plugins/ofono.rules b/plugins/ofono.rules +index 5a36380..bff8102 100644
+--- a/plugins/ofono.rules
++++ b/plugins/ofono.rules
+@@ -362,8 +362,18 @@ KERNEL=="shrm0", ENV{OFONO_DRIVER}="u8500" +
+ LABEL="ofono_isi_end"
+

+-SUBSYSTEM!="usb", GOTO="ofono_end"
+-ENV{DEVTYPE}!="usb_device", GOTO="ofono_end"

++# Possibly unmatched rules if CONFIG_USB_DEVICE_CLASS=y ++# (deprecated config option)
++# See http://permalink.gmane.org/gmane.linux.lfs.devel/5791
++SUBSYSTEM!="usb", GOTO="test_usb_device" ++ENV{DEVTYPE}!="usb_device", GOTO="test_usb_device" ++GOTO="set_ofono_driver"
++
++LABEL="test_usb_device"
++# Workaround in case the above rules do not match ++SUBSYSTEM!="usb_device", GOTO="ofono_end"
++
++LABEL="set_ofono_driver"
+
+ # Novatel Wireless
+ ATTRS{idVendor}=="1410", ENV{OFONO_DRIVER}="novatel"

Very likely it can be rewritten in some cleaner way.
It just falls back to checking usb_device as SUBSYSTEM in addition to what it checks now (i.e., usb as SUBSYSTEM or usb_device as ENV{DEVTYPE}). Also current checks could probably be removed as related to some deprecated kernel configurations, but we left there for compatibility reasons (they appear to be harmless after all).

Hope this patch may help! :)

Quoted 3 lines

Some logs are attached.
Thanks, Artem

Regards,
Paolo

Artem Makhutov

author

2011-09-15 18:24 UTC #5 lore raw

Hello Paolo,

Quoted 20 lines · Paolo Pellegrino

Hi Artem,
Il 15/09/2011 9.48, Artem Makhutov ha scritto:
Quoted 17 lines
Hi,
Quoted 4 lines · Artem Makhutov
Hello,
I am trying to setup ofono on my PC again, unfortunatly ofono does not pick up the connected huawei modem. [...]
I have done some more testing. Looks like the "OFONO_DRIVER=huawei" is getting removed somehow by udev.
With "udevadm monitor --property" I can see that OFONO_DRIVER=huawei was set for /devices/pci0000:00/0000:00:02.1/usb1/1-3 But "udevadm info --query=all --path=/devices/pci0000:00/0000:00:02.1/usb1/1-3" does not show it. Ofono also can't find it.

Quoted 6 lines

Quoted 1 line
Any ideas that to do to trace down the problem?
We incurred in a similar problem some months ago, but we thought the issue was related to some specific udev library version we were using (v153 if I remember well).
[...]

Yes this patch solved it. I am using udev 171-r2 on gentoo linux.

Thank you, Artem