This stops the error code getting lost since -1 wraps around to 0xFF when cast
to a uint8_t. This fixes#146
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
This lets you access a spidev device directly without any checking in the style
of mraa_i2c_init_raw
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
When using SPI, I prefer to not have to do malloc/free functions for each
transfer, so why not have a transfer function that you can pass in both
buffers. With my ILI9341 TFT display code that gave some perf wins, also more
of a win, you can pass in NULL for recv buffer and the underlying device driver
does not have to copy the data.
Signed-off-by: Kurt Eckhardt <kurte@rockisland.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
