diff options
| author | Arnaud Pouliquen <arnaud.pouliquen@st.com> | 2018-01-10 11:13:13 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-01-10 11:30:14 +0100 |
| commit | 16cbca06fa8288a4f58426fc898b141e12ee8008 (patch) | |
| tree | 74b875e2df0adae7b84afae5531fedaa7253029b /drivers/iio/buffer | |
| parent | IIO: ADC: add stm32 DFSDM support for PDM microphone (diff) | |
| download | linux-16cbca06fa8288a4f58426fc898b141e12ee8008.tar.xz linux-16cbca06fa8288a4f58426fc898b141e12ee8008.zip | |
IIO: consumer: allow to set buffer sizes
Add iio consumer API to set buffer size and watermark according
to sysfs API.
Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/iio/buffer')
| -rw-r--r-- | drivers/iio/buffer/industrialio-buffer-cb.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/iio/buffer/industrialio-buffer-cb.c b/drivers/iio/buffer/industrialio-buffer-cb.c index 4847534700e7..ea63c838eeae 100644 --- a/drivers/iio/buffer/industrialio-buffer-cb.c +++ b/drivers/iio/buffer/industrialio-buffer-cb.c @@ -104,6 +104,17 @@ error_free_cb_buff: } EXPORT_SYMBOL_GPL(iio_channel_get_all_cb); +int iio_channel_cb_set_buffer_watermark(struct iio_cb_buffer *cb_buff, + size_t watermark) +{ + if (!watermark) + return -EINVAL; + cb_buff->buffer.watermark = watermark; + + return 0; +} +EXPORT_SYMBOL_GPL(iio_channel_cb_set_buffer_watermark); + int iio_channel_start_all_cb(struct iio_cb_buffer *cb_buff) { return iio_update_buffers(cb_buff->indio_dev, &cb_buff->buffer, |