[riot-notifications] [RIOT] drivers/spi: updated SPI driver interface (#3216)

Kaspar Schleiser notifications at github.com
Wed Jun 17 13:37:36 CEST 2015


>   */
> -int spi_transfer_byte(spi_t dev, char out, char *in);
> +void spi_transfer_byte(spi_t dev, char out, char *in);

I would vote for ```char spi_transfer_byte(spi_t dev, char out)```.

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https://github.com/RIOT-OS/RIOT/pull/3216/files#r32617458
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