1. NAME▲

spi_read - SPI synchronous read

2. SYNOPSIS ▲

int spi_read(struct spi_device *  spi , void *  buf , size_t  len );

3. ARGUMENTS ▲

spi
    device from which data will be read

buf
    data buffer

len
    data buffer size

4. CONTEXT ▲

can sleep

5. DESCRIPTION ▲

This reads the buffer and returns zero or a negative error code. Callable only from contexts that can sleep.

6. COPYRIGHT ▲