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Date: Thu, 4 Dec 2014 15:00:16 +0200
From: Teodora Baluta <teodora.baluta@...el.com>
To: linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: Teodora Baluta <teodora.baluta@...el.com>
Subject: [RFC PATCH 2/3] iio: core: change channel's storagebits/realbits to u32
In order to fit a channel that describes a fingerprint scan the u8 range is
not enough. For example, a scan whose height is 384 pixels and whose
width is 144, for a bit depth of 8 bits per pixels, the total bits would
be 384 x 144 x 8 = 442368, well over the u8 maximum 255 value.
Fix that by changing the realbits and storagebits fields in the
iio_chan_spec struct to u32.
Signed-off-by: Teodora Baluta <teodora.baluta@...el.com>
---
include/linux/iio/iio.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index e280cfe..e34e67c 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -232,8 +232,8 @@ struct iio_chan_spec {
int scan_index;
struct {
char sign;
- u8 realbits;
- u8 storagebits;
+ u32 realbits;
+ u32 storagebits;
u8 shift;
u8 repeat;
enum iio_endian endianness;
--
1.9.1
--
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