Forcing DTR low on modem to hangup from Linux?

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#1157

From: Jon Thackray
Date: Tue, 19 Jul 1994 20:25

13 lines
1546 bytes

I've been trying to get a 'hangup' program to run after PPP terminates,
to hang up the modem. SLIP (via the DIP program) use the '+++' and 'ATH'
commands, but these don't seem to work if the modem is busy receiving data.
(I think the manual says that '+++' needs a 1 second gap)

What's the best way to force DTR low (it is DTR, isn't it?), so that the
modem is /guaranteed/ to go offline ...? Would I need to add a call to the
kernel to be able to do this, or could it be done from user mode?

Cheers,
Jon.
-- 
// Jon Thackray, 18 Windmill Wood, Amersham, Bucks. (0494) 721234.

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Subject: Forcing DTR low on modem to hangup from Linux?
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