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authorMark Brown <broonie@opensource.wolfsonmicro.com>2011-05-11 02:09:30 +0400
committerGrant Likely <grant.likely@secretlab.ca>2011-05-20 10:43:07 +0400
commit0c4a1590189b426814748d2e03b95541852b3af6 (patch)
treeb4b1d2eee1ea2b5d1700df4519e182cca816607b /include/linux/spi
parent521999bd4a8c47a86136b9d8223a9480f5906db8 (diff)
downloadlinux-0c4a1590189b426814748d2e03b95541852b3af6.tar.xz
spi: Use void pointers for data in simple SPI I/O operations
Currently the simple SPI I/O operations all take pointers to u8 * buffers to operate on. This creates needless type compatibility issues and the underlying spi_transfer structure uses void pointers anyway so convert the API over to take void pointers too. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'include/linux/spi')
-rw-r--r--include/linux/spi/spi.h8
1 files changed, 4 insertions, 4 deletions
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index b4d7710bc38d..bb4f5fbbbd8e 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -581,7 +581,7 @@ extern int spi_bus_unlock(struct spi_master *master);
* Callable only from contexts that can sleep.
*/
static inline int
-spi_write(struct spi_device *spi, const u8 *buf, size_t len)
+spi_write(struct spi_device *spi, const void *buf, size_t len)
{
struct spi_transfer t = {
.tx_buf = buf,
@@ -605,7 +605,7 @@ spi_write(struct spi_device *spi, const u8 *buf, size_t len)
* Callable only from contexts that can sleep.
*/
static inline int
-spi_read(struct spi_device *spi, u8 *buf, size_t len)
+spi_read(struct spi_device *spi, void *buf, size_t len)
{
struct spi_transfer t = {
.rx_buf = buf,
@@ -620,8 +620,8 @@ spi_read(struct spi_device *spi, u8 *buf, size_t len)
/* this copies txbuf and rxbuf data; for small transfers only! */
extern int spi_write_then_read(struct spi_device *spi,
- const u8 *txbuf, unsigned n_tx,
- u8 *rxbuf, unsigned n_rx);
+ const void *txbuf, unsigned n_tx,
+ void *rxbuf, unsigned n_rx);
/**
* spi_w8r8 - SPI synchronous 8 bit write followed by 8 bit read