Jason Thorpe <thorpej@nas.nasa.gov> writes:

> Firstly, you need to make sure there is a call to pcmcia_function_disable()
> at the end of com_pcmcia_attach().
> 
> Then, you need a pcmcia_function_enable() on first open, and
> a pcmcia_function_disable() in the close routine (the close is called
> on the _last_ close of the device).
> 
> Also, you need a check at the top of the hardware interrupt routine
> that the device is enabled ... if not, you need to return "not my interrupt",
> else you'll lose when you attempt to read the hardware registers :-)

Hmm.  I agree it works usual case (and actually worked).  But how can
we do if com device was open during suspension (actually it still
hanged after resume:-)?  Enabling power after resume is different
matter?

enami.