My Thinkpad T20 was stolen, so I replaced it with a Thinkpad R40, which has no serial port. I've got the onboard smartlink modem working a treat, but cannot use my Nokia 6310i via a USB/Serial converter. I had no problem on the T20 with a direct serial port connection.
The USB/Serial converter supports Linux (pl2303 module) and the Nokia is recognized as a modem on either /dev/ttyUSB0 or /dev/ttyUSB1.
Under KPPP (device set to /dev/ttyUSB0 or /dev/ttyUSB1) it dials out, but then "drops" and I get the following message:
QUOTE
localhost pppd[2145]: pppd 2.4.1 started by root, uid 0
localhost pppd[2145]: Terminating on signal 15.
localhost pppd[2145]: Couldn't set tty to PPP discipline:
Interrupted system call
localhost pppd[2145]: tcsetattr: No such device
localhost pppd[2145]: Exit.
UNQUOTE
It doesn't work under wvdial either
The problem seems to be that the /dev/ttyUSB0 or USB1 are not recognized.
I can't ln -s /dev/ttyUSB0 to /dev/modem, because that's already linked to the smartlink device (/dev/ttySL0)
This was reported as Bug 303 and Bug 304 to mandrakesoft by someone in France, but nothing seems to have been resolved.
Any ideas anybody?