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?
http://www.gentoo.ru/node/12140?page=1
and recently it disconnects every 20 seconds after connet to my internet
provider... annoying...
dmesg shows this
[10898.928089] usb 2-2: new high speed USB device using ehci_hcd and address 13
[10899.065674] usb 2-2: configuration #1 chosen from 1 choice
[10899.068907] usbserial_generic 2-2:1.0: GSM modem (1-port) converter detected
[10899.071853] usb 2-2: GSM modem (1-port) converter now attached to ttyUSB0
[10899.075121] usbserial_generic 2-2:1.1: GSM modem (1-port) converter detected
[10899.078199] usb 2-2: GSM modem (1-port) converter now attached to ttyUSB1
[10899.083102] scsi14 : SCSI emulation for USB Mass Storage devices
[10899.085383] usbserial_generic 2-2:1.3: GSM modem (1-port) converter detected
[10899.087646] usb 2-2: GSM modem (1-port) converter now attached to ttyUSB2
[10899.091567] usb-storage: device found at 13
[10899.091586] usb-storage: waiting for device to settle before scanning
[10904.088869] usb-storage: device scan complete
[10904.091358] scsi 14:0:0:0: Direct-Access ZTE MMC Storage 2.31
PQ: 0 ANSI: 2
[10904.094209] sd 14:0:0:0: [sdb] 3987456 512-byte hardware sectors (2042 MB)
[10904.097129] sd 14:0:0:0: [sdb] Write Protect is off
[10904.097144] sd 14:0:0:0: [sdb] Mode Sense: 0f 0e 00 00
[10904.097151] sd 14:0:0:0: [sdb] Assuming drive cache: write through
[10904.102682] sd 14:0:0:0: [sdb] 3987456 512-byte hardware sectors (2042 MB)
[10904.106055] sd 14:0:0:0: [sdb] Write Protect is off
[10904.106067] sd 14:0:0:0: [sdb] Mode Sense: 0f 0e 00 00
[10904.106074] sd 14:0:0:0: [sdb] Assuming drive cache: write through
[10904.109451] sdb: sdb1
[10904.113638] sd 14:0:0:0: [sdb] Attached SCSI removable disk
[10904.115376] sd 14:0:0:0: Attached scsi generic sg2 type 0
[10927.201056] eth1: no IPv6 routers present
[10956.024238] usb 2-2: USB disconnect, address 13
[10956.034024] option1 ttyUSB0: GSM modem (1-port) converter now disconnected
from ttyUSB0
[10956.035899] usbserial_generic 2-2:1.0: device disconnected
[10956.038125] option1 ttyUSB1: GSM modem (1-port) converter now disconnected
from ttyUSB1
[10956.039933] usbserial_generic 2-2:1.1: device disconnected
[10956.044903] usbserial_generic 2-2:1.3: device disconnected
[10956.131027] scsi 14:0:0:0: rejecting I/O to dead device
[10956.377450] option1 ttyUSB2: GSM modem (1-port) converter now disconnected
from ttyUSB2
[10960.985077] usb 2-2: new high speed USB device using ehci_hcd and address 14
[10961.134922] usb 2-2: configuration #1 chosen from 1 choice
[10961.136526] usb-storage: device ignored
[10966.566453] hub 2-0:1.0: port 2 disabled by hub (EMI?), re-enabling...
[10966.566475] usb 2-2: USB disconnect, address 14
thanks,
--
ZTE MF626 USB modem not recognized by network-manager 0.7
https://bugs.launchpad.net/bugs/297598
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