i was googeling because ia have a ZTE MF626 USB modem and i already
tried usb_modeswitch and modprobe usbserial and everithing worked
fine... but the modem disconnected after 2 or 3 minutes... sometimes
longer connections... may be signal... but the thing is that i sonetimes
unplugged the device and plugged back and "lsusb" showed nothing... i
tried "dmesg" and showed
[ 3408.164107] usb 1-2: new high speed USB device using ehci_hcd and address 21
[ 3408.276063] usb 1-2: device descriptor read/64, error -71
[ 3408.493089] usb 1-2: device descriptor read/64, error -71
[ 3408.708099] usb 1-2: new high speed USB device using ehci_hcd and address 22
[ 3408.821058] usb 1-2: device descriptor read/64, error -71
[ 3409.036085] hub 1-0:1.0: unable to enumerate USB device on port 2
and looking for the error messages i found a russian website with some
interesting things... try google translator and it understands quite
well... it seems to be that the kernel has some "UNUSUAL_DEV"... and the
numbers...
# cat /usr/src/linux/drivers/usb/storage/unusual_devs.h
...
...UNUSUAL_DEV( 0x19d2, 0x2000, 0x0000, 0x0000,
"Onda ET502HS",
"USB MMC Storage",
US_SC_DEVICE, US_PR_DEVICE, NULL,
US_FL_IGNORE_DEVICE),
i think this is the kernel source and they edited (commented that
devices) and rebuilded and rebooted... and it works fine or kind of...
or at least dmesg don't show nasty messagges...
As a comment, after unplugged my usb modem, and waited like half an
hour, y plugged it back and "lsusb" show the damn modem.... so i can use
modeswitch and modprobe to get connected again...
is there any chance to get an update (after a fix for this off
course)... that connects me automatically?
thanks,
--
0.7, 3G USB devices detected by usb-storage maybe need modeswitch
https://bugs.launchpad.net/bugs/259028
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