diff options
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/gpxe/spi.h | 17 | ||||
| -rw-r--r-- | src/include/gpxe/threewire.h | 2 |
2 files changed, 8 insertions, 11 deletions
diff --git a/src/include/gpxe/spi.h b/src/include/gpxe/spi.h index 93214063c..dba4c7431 100644 --- a/src/include/gpxe/spi.h +++ b/src/include/gpxe/spi.h @@ -118,21 +118,21 @@ struct spi_device_type { * @v device SPI device * @v address Address from which to read * @v data Data buffer - * @v len Length of data to read, in @b words + * @v len Length of data buffer * @ret rc Return status code */ int ( * read ) ( struct spi_device *device, unsigned int address, - void *data, unsigned int len ); + void *data, size_t len ); /** Write data to device * * @v device SPI device * @v address Address to which to write * @v data Data buffer - * @v len Length of data to write, in @b words + * @v len Length of data buffer * @ret rc Return status code */ int ( * write ) ( struct spi_device *device, unsigned int address, - const void *data, unsigned int len ); + const void *data, size_t len ); }; /** @@ -192,18 +192,15 @@ struct spi_bus { * @v address Address to read/write (<0 for no address) * @v data_out TX data buffer (or NULL) * @v data_in RX data buffer (or NULL) - * @v len Length of transfer (in @b words) + * @v len Length of data buffer(s) * * This issues the specified command and optional address to * the SPI device, then reads and/or writes data to/from the - * data buffers. Note that the transfer length is measured in - * words, not in bytes. Some SPI devices have 16-bit word - * lengths; take care with these devices not to accidentally - * read or write twice as much data as intended. + * data buffers. */ int ( * rw ) ( struct spi_bus *bus, struct spi_device *device, unsigned int command, int address, - const void *data_out, void *data_in, unsigned int len ); + const void *data_out, void *data_in, size_t len ); }; /** Clock phase (CPHA) mode bit diff --git a/src/include/gpxe/threewire.h b/src/include/gpxe/threewire.h index 28cfea103..4277d8abd 100644 --- a/src/include/gpxe/threewire.h +++ b/src/include/gpxe/threewire.h @@ -56,6 +56,6 @@ /** @} */ extern int threewire_read ( struct spi_device *device, unsigned int address, - void *data, unsigned int len ); + void *data, size_t len ); #endif /* _GPXE_THREEWIRE_H */ |