Re: pppd / modem disconnect

Clifford Kite (
Sun, 20 Jun 1999 08:21:56 -0500 (CDT)

Ah. An easy one for a change.

The device file IRQ is misconfigured. The IRQ that is configured in Linux
for /dev/ttySx (x=whatever for you) by setserial in a boot-up file needs
to be the IRQ that hte modem actually uses. Comment follows snippet.

On Sun, 20 Jun 1999, Marc Owen wrote:

|May 18 01:43:06 voodoosystem chat[216]: send (AT&FH0^M)
|May 18 01:43:06 voodoosystem chat[216]: expect (OK)
|May 18 01:43:24 voodoosystem chat[216]: AT&FH0^M^M
|May 18 01:43:24 voodoosystem chat[216]: OK -- got it

Note the difference between the timestamp for "send (AT&FH0^M)" and the
timestamp of the OK response from the modem. The 18 second delay
is a definitive symptom of a misconfigured IRQ.

Clifford Kite                                               Not a guru. (tm)                                           Not even close.

- To unsubscribe from this list: send the line "unsubscribe linux-net" in the body of a message to