blob: 0a524fcd96d25597219e01462d64e2d258c1ffd7 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
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
|
