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Posts Tagged ‘modem’

Modem usb_modeswitch in Raspberry Pi

USB modem these days are plug-and-play as CD-ROM first allowing driver and internet dialer application installations and then as modem afterwards. This Windows-behavior is handled by USB_ModeSwitch in Linux. Likely three years ago we did eject and other driver attachment by writing udev rules. Now it’s almost automatically attached as modem after insertion and people [...]

Compile USB Serial Modem Using option.c (Ubuntu on Beagleboard xM)

Despite possibility to use (1) $ modprobe -v usbserial vendor=0x05c6 product=0×0015 or (2) usb-modeswitch, (3) Matthias Urlichs initially wrote option.c driver as a way to insert USB modem as kernel module. This driver exists because the “normal” serial driver doesn’t work too well with GSM modems. Issues: – data loss — one single Receive URB [...]