diff options
Diffstat (limited to 'drivers/staging/iio/adc/ad799x_ring.c')
| -rw-r--r-- | drivers/staging/iio/adc/ad799x_ring.c | 30 |
1 files changed, 0 insertions, 30 deletions
diff --git a/drivers/staging/iio/adc/ad799x_ring.c b/drivers/staging/iio/adc/ad799x_ring.c index 5841c3c..5dded9e 100644 --- a/drivers/staging/iio/adc/ad799x_ring.c +++ b/drivers/staging/iio/adc/ad799x_ring.c @@ -23,36 +23,6 @@ #include "ad799x.h" -int ad799x_single_channel_from_ring(struct iio_dev *indio_dev, int channum) -{ - struct iio_buffer *ring = indio_dev->buffer; - int count = 0, ret; - u16 *ring_data; - - if (!(test_bit(channum, 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; - /* Need a count of channels prior to this one */ - count = bitmap_weight(ring->scan_mask, channum); - ret = be16_to_cpu(ring_data[count]); - -error_free_ring_data: - kfree(ring_data); -error_ret: - return ret; -} - /** * ad799x_ring_preenable() setup the parameters of the ring before enabling * |