constify struct cfattach

make it more apparent that when we are dealing with 16 bit registers
(not a series of 8 bit registers), the bytes come off the wire in
big-endian order

_check prototypes are no longer used (replaced by i2c_scan.c); ok deraadt@

rework sensor tasks to use the kernels generic workq rather than a special
kernel thread of its own. the api has changed (which will be fixed in the
manpage shortly) so all the users of sensor tasks that i can find have
been fixed too.

noone tested, so its going in to force people to run with it.
"put it in" deraadt@

Remove unused prototype.

split userland & kernel struct sensor/sensordev so that the addition
of new fields in the future is less disruptive. This is done similar
to how struct proc is handled for ps(1). ok jmc (man page changes)
tested fkr simon, and more suggestions from millert

adapt to new two-level sensor api; Constantine A. Murenin

make this match our code standards

Replace SENSOR_ADD() macro with a pair of functions
sensor_add()/sensor_del() so that sensors can be attached
and detached dynamicaly.

ok kettenis@ deraadt@ dlg@

spacing

ad7417 much like ad7418

no longer use ia_compat; tested by a few

attempt to cope with the other versions of the chips
try not to scan all the sensors every pass through, but do a
few registers each time
still not reading correct data on one machine i have, but this
might be because apple did not connect them up. who knows, when
they build machines with 50+ sensors..

differentiate the older chip without the 4 adc

simple driver for the Analog Devices AD7417/7418 (does not cope right
with 7416 without ADC yet)

make it more apparent that when we are dealing with 16 bit registers
(not a series of 8 bit registers), the bytes come off the wire in
big-endian order

_check prototypes are no longer used (replaced by i2c_scan.c); ok deraadt@

rework sensor tasks to use the kernels generic workq rather than a special
kernel thread of its own. the api has changed (which will be fixed in the
manpage shortly) so all the users of sensor tasks that i can find have
been fixed too.

noone tested, so its going in to force people to run with it.
"put it in" deraadt@

Remove unused prototype.

split userland & kernel struct sensor/sensordev so that the addition
of new fields in the future is less disruptive. This is done similar
to how struct proc is handled for ps(1). ok jmc (man page changes)
tested fkr simon, and more suggestions from millert

adapt to new two-level sensor api; Constantine A. Murenin

make this match our code standards

Replace SENSOR_ADD() macro with a pair of functions
sensor_add()/sensor_del() so that sensors can be attached
and detached dynamicaly.

ok kettenis@ deraadt@ dlg@

spacing

ad7417 much like ad7418

no longer use ia_compat; tested by a few

attempt to cope with the other versions of the chips
try not to scan all the sensors every pass through, but do a
few registers each time
still not reading correct data on one machine i have, but this
might be because apple did not connect them up. who knows, when
they build machines with 50+ sensors..

differentiate the older chip without the 4 adc

simple driver for the Analog Devices AD7417/7418 (does not cope right
with 7416 without ADC yet)