diff options
| author | Michael Hennerich <michael.hennerich@analog.com> | 2011-06-10 15:40:48 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-06-28 14:47:25 -0700 |
| commit | ae19178eacfab141afdd886e002bb80c99dba63a (patch) | |
| tree | fa8e3b7de3aa00f8f0e0dcecc1496c47a116a022 /drivers/staging/iio | |
| parent | 88bc30548aae18a39fd5d35cbb160a1ea347b4a7 (diff) | |
iio: industrialio-core: Add IIO_OUT type
Add IIO_OUT type for DAC like devices
In case of IIO_OUT make sure the channel device attribute is writable
Ideally we add a flag to iio_chan_spec that tells the core that
the channel device attribute is writable...
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/iio')
| -rw-r--r-- | drivers/staging/iio/iio.h | 1 | ||||
| -rw-r--r-- | drivers/staging/iio/industrialio-core.c | 4 |
2 files changed, 4 insertions, 1 deletions
diff --git a/drivers/staging/iio/iio.h b/drivers/staging/iio/iio.h index 9ca89c7d5693..7a6ce4d0fb7b 100644 --- a/drivers/staging/iio/iio.h +++ b/drivers/staging/iio/iio.h @@ -30,6 +30,7 @@ enum iio_chan_type { /* real channel types */ IIO_IN, + IIO_OUT, IIO_CURRENT, IIO_POWER, IIO_ACCEL, diff --git a/drivers/staging/iio/industrialio-core.c b/drivers/staging/iio/industrialio-core.c index 744153ee2edb..8fa2be6f566f 100644 --- a/drivers/staging/iio/industrialio-core.c +++ b/drivers/staging/iio/industrialio-core.c @@ -47,6 +47,7 @@ static const char * const iio_chan_type_name_spec_shared[] = { [IIO_TIMESTAMP] = "timestamp", [IIO_ACCEL] = "accel", [IIO_IN] = "in", + [IIO_OUT] = "out", [IIO_CURRENT] = "current", [IIO_POWER] = "power", [IIO_IN_DIFF] = "in-in", @@ -675,7 +676,8 @@ static int iio_device_add_channel_sysfs(struct iio_dev *dev_info, else ret = __iio_add_chan_devattr("raw", NULL, chan, &iio_read_channel_info, - NULL, + (chan->type == IIO_OUT ? + &iio_write_channel_info : NULL), 0, 0, &dev_info->dev, |