Hi,
Just to confirm whether or not this is the best way, say I had a
module foo(4) that pokes at /dev/bar0, which is attached to bar(4).
Should I setup the foo(4) driver with the same class as bar(4) and use
KPIs like device_get_parent(9) to get the device_t structure and pass
it along to bar(4)'s helper/ioctl functions, or is there a better way
to skin the proverbial cat?
I'm basing this observation off what I see in /sys/dev/uart_bus_puc.c .
Thanks!
-Garrett
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