Avoiding PCMCIA device conflicts with serial


Forum: Laptops
Topic: Avoiding PCMCIA device conflicts with serial
started by: tempestuous

Posted by tempestuous on Nov. 05 2004,02:06
This is advice, not a question.  I had a problem with my Sony notebook's internal modem not working on occasions, until I discovered that whenever a PCMCIA card was in place, it was allocated irq 3, which is the required irq for my modem (/dev/ttyS1).
The fix is simple. In /etc/pcmcia/config.opts   uncomment the line #exclude irq 3 . You might want to add some lines excluding other irq's as well if those irq's are required by devices which won't share their irq.  Use cat /proc/interrupts and dmesg to diagnose.
I hope this helps others.
Craig S

Posted by AwPhuch on Nov. 05 2004,17:36
Cool great find...thanks for posting up here bud

Brian
AwPhuch

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