I'm testing some software on NetBSD 8.1 x86_64. The software opens a USB modem and issues AT commands. The software tested OK on Debian, Fedora, OS X, and OpenBSD. The software is having trouble on NetBSD.
umodem0 at uhub1 port 1 configuration 2 interface 0 umodem0: U.S.Robotics (0xbaf) USB Modem (0x303), rev 2.00/2.00, addr 2, iclass 2/2 umodem0: data interface 1, has CM over data, has break umodem0: status change notification available ucom0 at umodem0
If I am parsing the NetBSD man pages properly (which may not be the case), I should be able to access the modem via
/dev/ucom0. Also see
UMODEM(4) man page.
The test user is part of the
dialer group. The software was not able to open
umodem0. All open's result in
No such file or directory. Additionally, there are no
How do I access the modem on NetBSD?