What:		/sys/class/spi_master/spiB/new_device
Date:		July 2026
KernelVersion:	7.3
Contact:	linux-spi@vger.kernel.org
Description:	(WO) Instantiate a new SPI device on bus B, where B
		is the bus number (0, 1, 2, ...). Takes parameters
		in the format:

		<modalias> <chip_select> [<max_speed_hz> [<mode>]]

		where modalias is the driver name, chip_select is the
		CS line number, and max_speed_hz and mode are optional.

		The device can later be removed with delete_device.

		Only devices created via this interface can be removed
		with delete_device; platform and DT devices are not
		affected.

		Example:
		# echo spidev 0 > /sys/class/spi_master/spi0/new_device
		# echo spidev 0 10000000 > /sys/class/spi_master/spi0/new_device
		# echo spidev 0 10000000 3 > /sys/class/spi_master/spi0/new_device

What:		/sys/class/spi_master/spiB/delete_device
Date:		July 2026
KernelVersion:	7.3
Contact:	linux-spi@vger.kernel.org
Description:	(WO) Remove a SPI device previously created via
		new_device. Takes a single parameter: the chip select
		number of the device to remove.

		Example:
		# echo 0 > /sys/class/spi_master/spi0/delete_device