6 commits

Author	SHA1	Message	Date
S.J.R. van Schaik	85a3f84d61	spi: properly exchange bytes by sending and reading each byte within a SPI transaction	2017-06-14 14:37:22 +02:00
S.J.R. van Schaik	154c33950a	spi: get rid of the separate calls to spi_set_cs_level()	2017-06-14 14:27:31 +02:00
S.J.R. van Schaik	60d316711f	spi: clean up the code in order to reduce the latency	2017-06-14 14:26:11 +02:00
S.J.R. van Schaik	77c3e5f440	spi: avoid setting up clocks again as it conflicts with USART	2017-04-07 17:35:15 +02:00
S.J.R. van Schaik	d2bb6994eb	spi: add function to release SPI device	2017-03-31 15:53:56 +02:00
S.J.R. van Schaik	a078de7c9f	spi: stm32f0: add SPI driver	2017-03-11 00:55:54 +00:00