I have been trying to get an EVDO modem to work with Centos 5. I can make it
dial out with wvdial only when I'm the root user. Otherwise I get this error:
Cannot open /dev/ttyUSB0: Device or resource busy
I added the user to the uucp group.
crw-rw---- 1 root uucp 188, 0 Dec 3 02:30 /dev/ttyUSB0
crw-rw---- 1 root uucp 188, 1 Dec 3 02:30 /dev/ttyUSB1
crw-rw---- 1 root uucp 188, 2 Dec 3 02:30 /dev/ttyUSB2
crw-rw---- 1 root uucp 188, 3 Dec 3 02:30 /dev/ttyUSB3
What have I missed?
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