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 4.0                      August 16, 1999                     NetBSD 4.0