diff options
| -rw-r--r-- | include/linux/spi/spi.h | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index 8c62ba74dd91..e766e0e2fe58 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h | |||
| @@ -282,10 +282,12 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv) | |||
| 282 | * @prepare_message: set up the controller to transfer a single message, | 282 | * @prepare_message: set up the controller to transfer a single message, |
| 283 | * for example doing DMA mapping. Called from threaded | 283 | * for example doing DMA mapping. Called from threaded |
| 284 | * context. | 284 | * context. |
| 285 | * @transfer_one: transfer a single spi_transfer. When the | 285 | * @transfer_one: transfer a single spi_transfer. |
| 286 | * driver is finished with this transfer it must call | 286 | * - return 0 if the transfer is finished, |
| 287 | * spi_finalize_current_transfer() so the subsystem can issue | 287 | * - return 1 if the transfer is still in progress. When |
| 288 | * the next transfer | 288 | * the driver is finished with this transfer it must |
| 289 | * call spi_finalize_current_transfer() so the subsystem | ||
| 290 | * can issue the next transfer | ||
| 289 | * @unprepare_message: undo any work done by prepare_message(). | 291 | * @unprepare_message: undo any work done by prepare_message(). |
| 290 | * @cs_gpios: Array of GPIOs to use as chip select lines; one per CS | 292 | * @cs_gpios: Array of GPIOs to use as chip select lines; one per CS |
| 291 | * number. Any individual value may be -ENOENT for CS lines that | 293 | * number. Any individual value may be -ENOENT for CS lines that |