> Is there any existing driver which follows a format like this that can be > modified to support this device? There is a standard for modem muxes - it's GSM 0710 - but what you are seeing doesn't look like the standard. Take a look at drivers/tty/n_gsm.c - its a vastly more complex protocol but it does show how to do a mux line discipline that you can attach to the modem tty ports and create a new set of mux ports. You can do something similar (but a lot shorter!) or you could do it userspace and use tty/pty pairs for the PPP. You may also want to look at how IP traffic is handled in more detail. In the GSM 0710 case many modems support handing raw IP frames around. You might also want to look at the work being done on QCDM/QMI and other qualcomm protocols as that may be related to what your modem speaks. http://blogs.gnome.org/dcbw/2010/04/15/mobile-broadband-and-qualcomm-proprietary-protocols/ -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
