Question: modem doesn't work until setserial irq 0 -- but works after 

Forum: PCMCIA Serial and Modem Issues
Date: 1999, Dec 29
From: John Ruttenberg rutt

System brand & model: gateway solo 9100xl PCMCIA card: telepath 56k modem Linux version: 2.2.13 Pcmcia version: 3.1.7 (+cardbus +PnP) This modem doesn't work at all until I do: setserial /dev/modem irq 0 But the strange thing is that once this has been done once, the modem will aways work even after: setserial /dev/modem irq 11 (11 is the irq assigned by pcmcia in the first place.) In fact, the modem will even work after stopping and restarting pcmcia with: /etc/rc.d/init.d/pcmcia stop /etc/rc.d/init.d/pcmcia start But after a reboot, the modem won't work until the irq has once been set to 0. By the way, I have: PCIC_OPTS="pci_csc=1"

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1. Kernel bug, workaround in 3.1.10 by David Hinds, 2000, Feb 04

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