iio: dummy: Add virtual registers for dummy device
authorDaniel Baluta <daniel.baluta@intel.com>
Mon, 10 Nov 2014 12:45:29 +0000 (14:45 +0200)
committerJonathan Cameron <jic23@kernel.org>
Sat, 22 Nov 2014 11:05:44 +0000 (11:05 +0000)
commit356ae946f9945997213b19279bc2e84bb61cc26a
treebb833bd9115524bc59d4a69424cd4ae8913d5c8f
parentd7d787d29148cde12958c2e3765ad3a55dc55eaf
iio: dummy: Add virtual registers for dummy device

We need a way to store events generated by iio_dummy_evgen module,
in order to correctly process IRQs in iio_simple_dummy_events.

For the moment, we add two registers:

* id_reg  - ID register, stores the source of the event
* id_data - DATA register, stores the type of the event

e.g echo 4 > /sys/bus/iio/devices/iio_evgen/poke2

id_reg 0x02, id_data 0x04

This means, event of type 4 was generated by fake device 2.

We currently use a hardcoded mapping of virtual events to IIO events.

Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Signed-off-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
drivers/staging/iio/iio_dummy_evgen.c
drivers/staging/iio/iio_dummy_evgen.h
drivers/staging/iio/iio_simple_dummy.h
drivers/staging/iio/iio_simple_dummy_events.c