diff options
| author | Jonathan Cameron <jic23@kernel.org> | 2011-12-05 22:18:17 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-12-08 12:11:09 -0800 |
| commit | 443a9ea56644f9989282c88b7a7fcce9eb501a69 (patch) | |
| tree | 8cb91bbacc4aee10373dd3ff593f00a2f4ff222f /drivers/staging/iio/accel/lis3l02dq_ring.c | |
| parent | 66748b5ada7fb847882baf56e910da7bae75670d (diff) | |
staging:iio:accel:lis3l02dq scrap reading from buffer for sysfs access.
No obvious usecase 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/accel/lis3l02dq_ring.c')
| -rw-r--r-- | drivers/staging/iio/accel/lis3l02dq_ring.c | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/drivers/staging/iio/accel/lis3l02dq_ring.c b/drivers/staging/iio/accel/lis3l02dq_ring.c index b44fe394f62f..98c5c92d3450 100644 --- a/drivers/staging/iio/accel/lis3l02dq_ring.c +++ b/drivers/staging/iio/accel/lis3l02dq_ring.c @@ -38,38 +38,6 @@ irqreturn_t lis3l02dq_data_rdy_trig_poll(int irq, void *private) return IRQ_WAKE_THREAD; } -/** - * lis3l02dq_read_accel_from_buffer() individual acceleration read from buffer - **/ -ssize_t lis3l02dq_read_accel_from_buffer(struct iio_buffer *buffer, - int index, - int *val) -{ - int ret; - s16 *data; - - if (!iio_scan_mask_query(buffer, index)) - return -EINVAL; - - if (!buffer->access->read_last) - return -EBUSY; - - data = kmalloc(buffer->access->get_bytes_per_datum(buffer), - GFP_KERNEL); - if (data == NULL) - return -ENOMEM; - - ret = buffer->access->read_last(buffer, (u8 *)data); - if (ret) - goto error_free_data; - *val = data[bitmap_weight(buffer->scan_mask, index)]; -error_free_data: - - kfree(data); - - return ret; -} - static const u8 read_all_tx_array[] = { LIS3L02DQ_READ_REG(LIS3L02DQ_REG_OUT_X_L_ADDR), 0, LIS3L02DQ_READ_REG(LIS3L02DQ_REG_OUT_X_H_ADDR), 0, |