diff options
Diffstat (limited to 'src/include/spi-generic.h')
| -rw-r--r-- | src/include/spi-generic.h | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/src/include/spi-generic.h b/src/include/spi-generic.h index 347ec3c202..7c53611d79 100644 --- a/src/include/spi-generic.h +++ b/src/include/spi-generic.h @@ -17,6 +17,7 @@ #define _SPI_GENERIC_H_ #include <stdint.h> +#include <stddef.h> /* Controller-specific definitions: */ @@ -67,7 +68,7 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs); * Returns: 0 if the bus was claimed successfully, or a negative value * if it wasn't. */ -int spi_claim_bus(struct spi_slave *slave); +int spi_claim_bus(const struct spi_slave *slave); /*----------------------------------------------------------------------- * Release the SPI bus @@ -78,7 +79,7 @@ int spi_claim_bus(struct spi_slave *slave); * * slave: The SPI slave */ -void spi_release_bus(struct spi_slave *slave); +void spi_release_bus(const struct spi_slave *slave); /*----------------------------------------------------------------------- * SPI transfer @@ -92,10 +93,8 @@ void spi_release_bus(struct spi_slave *slave); * * Returns: 0 on success, not 0 on failure */ -int spi_xfer(struct spi_slave *slave, const void *dout, unsigned int bytesout, - void *din, unsigned int bytesin); - - +int spi_xfer(const struct spi_slave *slave, const void *dout, size_t bytesout, + void *din, size_t bytesin); unsigned int spi_crop_chunk(unsigned int cmd_len, unsigned int buf_len); @@ -108,7 +107,7 @@ unsigned int spi_crop_chunk(unsigned int cmd_len, unsigned int buf_len); * * TODO: This function probably shouldn't be inlined. */ -static inline int spi_w8r8(struct spi_slave *slave, unsigned char byte) +static inline int spi_w8r8(const struct spi_slave *slave, unsigned char byte) { unsigned char dout[2]; unsigned char din[2]; |