Jonathan Cameron wrote on 2010-10-07:
> The device found passed to the attr functions is that of the ring
> buffer, not the the iio_dev so we need to bounce through one more hop
> to get the right address.
>
> Reported-by: Michael Hennerich <michael.hennerich@xxxxxxxxxx>
> Signed-off-by: Jonathan Cameron <jic23@xxxxxxxxx>
Acked-by: Michael Hennerich <michael.hennerich@xxxxxxxxxx>
> ---
> drivers/staging/iio/accel/sca3000_ring.c | 6 ++++--
> 1 files changed, 4 insertions(+), 2 deletions(-)
> diff --git a/drivers/staging/iio/accel/sca3000_ring.c
> b/drivers/staging/iio/accel/sca3000_ring.c index 8186d2b..c872fdd 100644
> --- a/drivers/staging/iio/accel/sca3000_ring.c +++
> b/drivers/staging/iio/accel/sca3000_ring.c @@ -138,7 +138,8 @@ static
> ssize_t sca3000_show_ring_bpse(struct device *dev, {
> int len = 0, ret;
> u8 *rx;
> - struct iio_dev *indio_dev = dev_get_drvdata(dev);
> + struct iio_ring_buffer *ring = dev_get_drvdata(dev);
> + struct iio_dev *indio_dev = ring->indio_dev;
> struct sca3000_state *st = indio_dev->dev_data;
>
> mutex_lock(&st->lock);
> @@ -168,7 +169,8 @@ static ssize_t sca3000_store_ring_bpse(struct
> device *dev,
> const char *buf,
> size_t len)
> {
> - struct iio_dev *indio_dev = dev_get_drvdata(dev);
> + struct iio_ring_buffer *ring = dev_get_drvdata(dev);
> + struct iio_dev *indio_dev = ring->indio_dev;
> struct sca3000_state *st = indio_dev->dev_data;
> int ret;
> u8 *rx;
Greetings,
Michael
Analog Devices GmbH Wilhelm-Wagenfeld-Str. 6 80807 Muenchen
Sitz der Gesellschaft Muenchen, Registergericht Muenchen HRB 4036 Geschaeftsfuehrer Thomas Wessel, William A. Martin, Margaret Seif
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