On Tuesday 01 September 2009, Song, Barry wrote: > >> + spi_message_add_tail(&t, &m); > >> + ret = spi_sync(spi, &m); > > > >cant you use spi_write_then_read() ? dont let the u8* prototype scare > >you, it should work with writing 16bits and then reading 16bits. > > I have never been scared by any u8* or something else. I only prefer > to use raw spi API, which can show the bottom level timing and SPI > bus feature better. In this case spi_write_then_read() is required, since your tx and rx buffers are on the stack and hence not DMA-safe. -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
