umodem(4) - NetBSD Manual Pages

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UMODEM(4)               NetBSD Kernel Interfaces Manual              UMODEM(4)


NAME

     umodem -- USB modem support


SYNOPSIS

     umodem* at uhub?
     ucom*   at umodem?


DESCRIPTION

     The umodem driver provides support for USB modems in the Communication
     Device Class using the Abstract Control Model.  These modems are basi-
     cally standard serial line modems, but they are accessed via USB instead.
     They support a regular AT command set.  The commands can either be multi-
     plexed with the data stream or handled through separate pipes.  In the
     latter case the AT commands have to be given on a device separate from
     the data device.

     The device is accessed through the ucom(4) driver which makes it behave
     like a tty(4).


SEE ALSO

     tty(4), ucom(4), usb(4)


HISTORY

     The umodem driver appeared in NetBSD 1.5.


BUGS

     Only modems with multiplexed commands and data are supported at the
     moment.

NetBSD 9.4_STABLE               August 16, 1999              NetBSD 9.4_STABLE