diff options
| author | Jonathan Cameron <jic23@kernel.org> | 2011-12-05 22:18:19 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-12-08 12:11:10 -0800 |
| commit | 389ac488330d9946a0f7dd572acd790e41486a9e (patch) | |
| tree | caffa46f9cc96f965aea11fcf33b4d34df14b161 /drivers/staging/iio/adc/ad7298_ring.c | |
| parent | e0f0ddad805e98ae725d52a6cc23ac114ecf6114 (diff) | |
| download | op-kernel-dev-389ac488330d9946a0f7dd572acd790e41486a9e.zip op-kernel-dev-389ac488330d9946a0f7dd572acd790e41486a9e.tar.gz | |
staging:iio:adc:ad7476 scrap read from buffer for sysfs access.
No known use case and complicates in kernel interface work.
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/iio/adc/ad7298_ring.c')
| -rw-r--r-- | drivers/staging/iio/adc/ad7298_ring.c | 29 |
1 files changed, 0 insertions, 29 deletions
diff --git a/drivers/staging/iio/adc/ad7298_ring.c b/drivers/staging/iio/adc/ad7298_ring.c index 5695eb2..d1a12dd 100644 --- a/drivers/staging/iio/adc/ad7298_ring.c +++ b/drivers/staging/iio/adc/ad7298_ring.c @@ -18,35 +18,6 @@ #include "ad7298.h" -int ad7298_scan_from_ring(struct iio_dev *indio_dev, long ch) -{ - struct iio_buffer *ring = indio_dev->buffer; - int ret; - u16 *ring_data; - - if (!(test_bit(ch, ring->scan_mask))) { - ret = -EBUSY; - goto error_ret; - } - - ring_data = kmalloc(ring->access->get_bytes_per_datum(ring), - GFP_KERNEL); - if (ring_data == NULL) { - ret = -ENOMEM; - goto error_ret; - } - ret = ring->access->read_last(ring, (u8 *) ring_data); - if (ret) - goto error_free_ring_data; - - ret = be16_to_cpu(ring_data[ch]); - -error_free_ring_data: - kfree(ring_data); -error_ret: - return ret; -} - /** * ad7298_ring_preenable() setup the parameters of the ring before enabling * |
