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staging: iio: ad7476: fix !CONFIG_IIO_RING_BUFFER build issue reported by Randy Dunlap 

Fix function function decalration
Enable CONFIG_IIO_RING_BUFFER for the ad7476 driver

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Michael Hennerich 2010-10-14 10:17:18 +02:00 committed by Greg Kroah-Hartman
parent af73713642
commit 2a28f6cb74
2 changed files with 4 additions and 3 deletions
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3
drivers/staging/iio/adc/Kconfig
View File

@ -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

4
drivers/staging/iio/adc/ad7476.h
View File

@ -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 */
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;
}