cvs commit: src/sys/dev/acpica acpi.c acpi_acad.c acpi_button.c acpi_resource.c acpivar.h

John Baldwin jhb at
Wed Jun 16 00:16:10 GMT 2004

On Monday 14 June 2004 07:57 pm, Nate Lawson wrote:
> I think I know my problem.  I was testing using modules and so I had the
> latest changes to acpi.ko (which now don't init the table to NULL) but no
> changes to the kernel (checking for the acpi devclass).
> Sorry, this looks like pilot error.  I'll test the change of just using
> devclass_find() instead of also device_get_softc() and commit.

devclass_find() will succeed even if acpi0 fails to probe.  The softc is only 
null if the device is attached I suppose, so even if you do 
devclass_get_device() you have to check to see if the device_t's state is > 
DS_NOTPRESENT.  device_get_softc() manages to do that for you in one check 
since a DS_NOTPRESENT device has a NULL softc (as does a non-existent 

John Baldwin <jhb at>  <><
"Power Users Use the Power to Serve"  =

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