The flag combination "SPI_XFER_BEGIN | SPI_XFER_END" is a common use case of spi_xfer, and it can easily cause an already long line (spi_xfer takes 5 parameters) to go over the 80 character limit. define SPI_XFER_ONCE to be a shorter version of the above flag combination. Cc: To...
define SPI_XFER_ONCE to be a shorter version of the above flag combination. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>...
首先需要编写CREATE_PROCESS_DEBUG_EVENT事件，程序被首次加载进入内存时会被触发此事件，在该事件内首先我...
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5 changes: 4 additions & 1 deletion 5 drivers/spi/spi-uclass.c Original file line numberDiff line numberDiff line change @@ -86,11 +86,14 @@ int dm_spi_xfer(struct udevice *dev, unsigned int bitlen, const void *dout, void *din, unsigned long flags)...
#define SPI_XFER_BEGIN BIT(0) /* Assert CS before transfer */ #define SPI_XFER_END BIT(1) /* Deassert CS after transfer */ #define SPI_XFER_ONCE (SPI_XFER_BEGIN | SPI_XFER_END) #define SPI_XFER_MMAP BIT(2) /* Memory Mapped start */ #define SPI_XFER_MMAP_END BIT(3) /* ...
That is, that executing spi.writebytes([0x44, 0x88, 0xBB, 0xDD]) clocks out in reverse order (i.e. 0xDD, 0xBB, 0x44, 0x88). I can confirm the same behaviour with xfer and xfer2. Is this a problem with the spidev C++ implementation, or with the bindings?Collaborator...
info->max_xfer_size, SPI_WORD_SIZE_GET(config->operation)); return -ENOTSUP; }/* Word size */ ctrlr0 |= DW_SPI_CTRLR0_DFS(SPI_WORD_SIZE_GET(config->operation)); if (info->max_xfer_size == 32) { ctrlr0 |= DW_SPI_CTRLR0_DFS_32(SPI_WORD_SIZE_GET(config->operation)); ...