umodem(4) - NetBSD Manual Pages

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

umodem -- USB modem support
umodem* at uhub? ucom* at umodem?
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).
tty(4), ucom(4), usb(4)
The umodem driver appeared in NetBSD 1.5.
Only modems with multiplexed commands and data are supported at the moment. NetBSD 5.0 August 16, 1999 NetBSD 5.0
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