I doing firmware for digital media processor, written in C. Media
processor is EM8551.

1) PCMCIA and LAN share same interrupt on local bus. I did semaphores,
mutex to protect. The 2 interrupts are active low. when pcmcia card is
plugged in, LAN still die (0V signal)n disconnected. It cannot recover
even PCMCIA card is plugged out.


2) In PCMCIA card detect, will serach for CISTPL_FUNCID (code: 0x21).
some cards cannot find the 0x21 code even loop up to 200 times.


any suggestion? thanx


regards,
sytee