Hi,
While I am testing the code which handles the case that a physical link is
removed while system shutdown, I found a strange thing that I don't know
whether it is expected:
I am testing a laptop which has a pluggable wireless card "ath1". I first
booted the system with ath1, and then shutdown the system, and remove this
card, then reboot the system. My code has the logic to see whether this link
still exists, and if not, mark the link as "not available".
The function ddi_hold_devi_by_instance(major_of_ath, 1, 0) is called to see
whether the device is still available. But surprisingly, the function
returns a valid dev_info, but whose major number is "pcs" instead of "ath".
I could work around the problem by comparing the major number, but I'd like
to understand whether this is expected for ddi_hold_devi_by_instance() function.
Actually, the path name of the "ath1" device is:
"pci at 0,0/pci1025,57 at 7/pci1385,5b00 at 0:ath1"
and the path name of the returned dev_info is:
"pci at 0,0/pci1025,57 at 7/pcs at 0"
Thanks
- Cathy
