Sample values in comedi are generally represented by unsigned values.
Change the type of the `dma_buffer` member of `struct a2150_private`
from `s16 *` to `uint16_t *`, and change the type of the `dpnt` variable
in `a2150_interrupt()` to `unsigned short` for consistency.
Signed-off-by: Ian Abbott <abbo...@mev.co.uk>
---
drivers/staging/comedi/drivers/ni_at_a2150.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/comedi/drivers/ni_at_a2150.c
b/drivers/staging/comedi/drivers/ni_at_a2150.c
index c77d343..63c8479 100644
--- a/drivers/staging/comedi/drivers/ni_at_a2150.c
+++ b/drivers/staging/comedi/drivers/ni_at_a2150.c
@@ -154,7 +154,7 @@ struct a2150_private {
volatile unsigned int count; /* number of data points left to be
taken */
unsigned int dma; /* dma channel */
- s16 *dma_buffer; /* dma buffer */
+ uint16_t *dma_buffer; /* dma buffer */
unsigned int dma_transfer_size; /* size in bytes of dma transfers */
int irq_dma_bits; /* irq/dma register bits */
int config_bits; /* config register bits */
@@ -192,7 +192,7 @@ static irqreturn_t a2150_interrupt(int irq, void *d)
struct comedi_async *async;
struct comedi_cmd *cmd;
unsigned int max_points, num_points, residue, leftover;
- short dpnt;
+ unsigned short dpnt;
static const int sample_size = sizeof(devpriv->dma_buffer[0]);
if (!dev->attached) {
--
1.8.4
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