Module Name:	src
Committed By:	bouyer
Date:		Sat May 15 17:15:10 UTC 2004

Modified Files:
	src/sys/dev/ic: wdc.c

Log Message:
In wdcprobe1(), protect the register writability test with splbio().
What we do here seems to trigger interrupts on some pcmcia adapters, which
cause the kernel to hang.
Add some WDCDEBUG_PRINT((), DEBUG_PROBE).
Avoid touching registers of nonexistent drives, once we know which drive is
or is not here.

This makes the "IBM PCMCIA Portable CD-ROM Drive" (external CD drive with
PCMCIA adapter) work.


To generate a diff of this commit:
cvs rdiff -r1.173 -r1.174 src/sys/dev/ic/wdc.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.