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spi_w8r8
Langue: en
Version: June 2009 (debian - 07/07/09)
Section: 9 (Appels noyau Linux)
NAME
spi_w8r8 - SPI synchronous 8 bit write followed by 8 bit readSYNOPSIS
- ssize_t spi_w8r8(struct spi_device * spi, u8 cmd);
ARGUMENTS
spi
- device with which data will be exchanged
cmd
- command to be written before data is read back
CONTEXT
can sleep
DESCRIPTION
This returns the (unsigned) eight bit number returned by the device, or else a negative error code. Callable only from contexts that can sleep.
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