git: u4b - implement usb_filter_write(), fix issues w/apcupsd

[Matthew Dillon]

commit 112c575c5ef0d2c493ae7d5971ba6c32e4cd514c
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date:   Sun Dec 28 14:13:05 2014 -0800

    u4b - implement usb_filter_write(), fix issues w/apcupsd
    
    * Implement usb_filter_write() (poll, kqueue).
    
    * This fixes a live loop in apcupsd when it is configured
      to talk to the UPS over a usb port.

Summary of changes:
 sys/bus/u4b/usb_dev.c | 46 ++++++++++++++++++++--------------------------
 1 file changed, 20 insertions(+), 26 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/112c575c5ef0d2c493ae7d5971ba6c32e4cd514c


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