airprime fails with Huawei E220 on ThinkPad X61T (usbserial works)
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Invalid
|
Undecided
|
Unassigned |
Bug Description
Binary package hint: linux-source-2.6.24
The 'airprime' driver (a usb-serial driver designed specifically for high-speed 3G USB modems) fails on a ThinkPad X61 Tablet:
[ 184.883883] airprime ttyUSB0: airprime_open - failed submitting read urb 0 for port 0, error -2
[ 184.884069] ...repeated 7 times...
Forcing the main 'usbserial' driver to load instead:
sudo modprobe -r airprime usbserial
sudo modprobe usbserial product=12d1 vendor=1003
and re-plugging the device now works. Though for some reason presents 6 devices instead of 2 (or 3):
$ ls -l /dev/ttyUSB*
crw-rw---- 1 root dialout 188, 0 2008-06-20 00:30 /dev/ttyUSB0
crw-rw---- 1 root dialout 188, 1 2008-06-20 00:29 /dev/ttyUSB1
crw-rw---- 1 root dialout 188, 2 2008-06-20 00:29 /dev/ttyUSB2
crw-rw---- 1 root dialout 188, 3 2008-06-20 00:29 /dev/ttyUSB3
crw-rw---- 1 root dialout 188, 4 2008-06-20 00:29 /dev/ttyUSB4
crw-rw---- 1 root dialout 188, 5 2008-06-20 00:29 /dev/ttyUSB5
Device ID:
$ sudo lsusb -s 5:4
Bus 005 Device 004: ID 12d1:1003 Huawei Technologies Co., Ltd. E220 HSDPA Modem
Hi Paul,
Care to confirm this is still an issue with the latest Alpha for the upcoming Intrepid Ibex 8.10. You should be able to test via a LiveCD - http:// www.ubuntu. com/testing. Please let us know your results. Thanks.