Sorry for late responce. PLIP doesn't work well in linux-2.1.36. The
reason is PLIP needs normal interrupt. That is, it needs to call
request_irq() with the argument flag 0 not with SA_INTERRUPT, so that
bottom half can run after interrupts. However, in current scheme of
parport_register_port(), it calls request_irq() with SA_INTERRUPT.
Could you add some flag which enables PLIP specify no SA_INTERRUPT?
Thanks in advance.
-- NIIBE Yutaka