CVS commit: src/sys/dev/usb

["Taylor R Campbell" <riastradh%netbsd.org@localhost>]

Module Name:    src
Committed By:   riastradh
Date:           Sun Aug 16 02:37:19 UTC 2020

Modified Files:
        src/sys/dev/usb: ugen.c

Log Message:
Share unit numbering for ugen and ugenif.

This way putting ugenif in kernel config actually works to wire it to
the /dev/ugenN.MM device nodes in userland.

Not a fully fleshed out solution to the ugen problem -- there's no
way for a userland driver to kick out a kernel driver and take over,
but this will let us, e.g., use uhidev(4) for Yubikey OTP/U2F/FIDO2
but ugen(4), with pcscd(8), for Yubikey CCID.

Fix various MP-safety issues while here (still not MPSAFE, but more
progress).


To generate a diff of this commit:
cvs rdiff -u -r1.154 -r1.155 src/sys/dev/usb/ugen.c

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