K 10
svn:author
V 3
ian
K 8
svn:date
V 27
2019-12-09T19:00:39.024157Z
K 7
svn:log
V 433
Switch gpioths(4) from using a callout to a taskqueue for periodic polling
of the sensor hardware.  Part of the polling process involves signalling
the chip then waiting 20 milliseconds.  This was being done with DELAY(),
which is a pretty rude thing to do in a callout.  Now a taskqueue_thread
task is scheduled to do the polling, and because sleeping is allowed in
the task context, pause_sbt() replaces DELAY() for the 20ms wait.

END