On 10/14/10 09:17, michael.hennerich@xxxxxxxxxx wrote:
> From: Michael Hennerich <michael.hennerich@xxxxxxxxxx>
>
> Fix function function decalration
> Enable CONFIG_IIO_RING_BUFFER for the ad7476 driver
>
> Signed-off-by: Michael Hennerich <michael.hennerich@xxxxxxxxxx>
> ---
> drivers/staging/iio/adc/Kconfig | 3 +++
> drivers/staging/iio/adc/ad7476.h | 4 +---
> 2 files changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/staging/iio/adc/Kconfig b/drivers/staging/iio/adc/Kconfig
> index 81a7d45..acb6767 100644
> --- a/drivers/staging/iio/adc/Kconfig
> +++ b/drivers/staging/iio/adc/Kconfig
> @@ -50,6 +50,9 @@ config AD799X_RING_BUFFER
> config AD7476
> tristate "Analog Devices AD7475/6/7/8 AD7466/7/8 and AD7495 ADC driver"
> depends on SPI
> + select IIO_RING_BUFFER
> + select IIO_SW_RING
> + select IIO_TRIGGER
> help
> Say yes here to build support for Analog Devices
> AD7475, AD7476, AD7477, AD7478, AD7466, AD7467, AD7468, AD7495
> diff --git a/drivers/staging/iio/adc/ad7476.h b/drivers/staging/iio/adc/ad7476.h
> index 6e4a85b..b51b49e 100644
> --- a/drivers/staging/iio/adc/ad7476.h
> +++ b/drivers/staging/iio/adc/ad7476.h
> @@ -59,9 +59,7 @@ int ad7476_scan_from_ring(struct ad7476_state *st);
> int ad7476_register_ring_funcs_and_init(struct iio_dev *indio_dev);
> void ad7476_ring_cleanup(struct iio_dev *indio_dev);
> #else /* CONFIG_IIO_RING_BUFFER */
If you are selecting the ring buffer (which is fine), then why do you need
anything to be in this else? The buffer will always be there.
Maybe I'm missing something?
> -static inline ssize_t ad7476_scan_from_ring(struct device *dev,
> - struct device_attribute *attr,
> - char *buf)
> +static inline int ad7476_scan_from_ring(struct ad7476_state *st)
> {
> return 0;
> }
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