other versions
| SPI_READ(9) | Serial Peripheral Interface (S | SPI_READ(9) |
NAME¶
spi_read - SPI synchronous readSYNOPSIS¶
int
spi_read(struct spi_device * spi,
void * buf,
size_t len);
ARGUMENTS¶
spidevice from which data will be read
buf
data buffer
len
data buffer size
CONTEXT¶
can sleepDESCRIPTION¶
This function reads the buffer buf. Callable only from contexts that can sleep.RETURN¶
zero on success, else a negative error code.COPYRIGHT¶
| January 2017 | Kernel Hackers Manual 4.8. |