CVS commit: [nick-nhusb] src/sys/dev/usb

["Nick Hudson" <skrll%netbsd.org@localhost>]

Module Name:    src
Committed By:   skrll
Date:           Sun Nov  6 11:50:54 UTC 2016

Modified Files:
        src/sys/dev/usb [nick-nhusb]: ucom.c

Log Message:
Reduce the scope of the softc lock further and track device state via
sc_state.

All ucom methods apart from ucom_{read,write} are called without the
softc lock held.

ucom_close is called on last close only to match ucom_open being called
on first open only.

Fix ucom_detach where refcnt wasn't being decremented.

More DEBUG.

XXX still not sure where tty_lock needs to be held.


To generate a diff of this commit:
cvs rdiff -u -r1.108.2.30 -r1.108.2.31 src/sys/dev/usb/ucom.c

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