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 5.0_STABLE               August 16, 1999              NetBSD 5.0_STABLE
