pinmux command¶
Synopsis¶
pinmux list
pinmux dev [pincontroller-name]
pinmux status [-a | pin-name]
Description¶
The pinmux command is used to show the pin-controller muxing.
The ‘pinmux list’ command diplays the available pin-controller.
The ‘pinmux dev’ command selects the pin-controller for next commands.
- pincontroller-name
- name of the pin-controller to select
The ‘pinmux status’ command displays the pin muxing information.
- -a
- display pin muxing of all pin-controllers.
- pin-name
- name of the pin to display
Example¶
=> pinmux list
| Device | Driver | Parent
| pinctrl-gpio | sandbox_pinctrl_gpio | root_driver
| pinctrl | sandbox_pinctrl | root_driver
=>
=> pinmux dev pinctrl
dev: pinctrl
=>
=> pinmux status
P0 : UART TX.
P1 : UART RX.
P2 : I2S SCK.
P3 : I2S SD.
P4 : I2S WS.
P5 : GPIO0 bias-pull-up input-disable.
P6 : GPIO1 drive-open-drain.
P7 : GPIO2 bias-pull-down input-enable.
P8 : GPIO3 bias-disable.
=>
=> pinmux status P0
P0 : UART TX.
=>
=> pinmux status -a
--------------------------
pinctrl-gpio:
a0 : gpio input .
a1 : gpio input .
a2 : gpio input .
a3 : gpio input .
a4 : gpio input .
a5 : gpio output .
a6 : gpio output .
a7 : gpio input .
a8 : gpio input .
a9 : gpio input .
--------------------------
pinctrl:
P0 : UART TX.
P1 : UART RX.
P2 : I2S SCK.
P3 : I2S SD.
P4 : I2S WS.
P5 : GPIO0 bias-pull-up input-disable.
P6 : GPIO1 drive-open-drain.
P7 : GPIO2 bias-pull-down input-enable.
P8 : GPIO3 bias-disable.
Configuration¶
The pinmux command is only available if CONFIG_CMD_PINMUX=y.
Return value¶
The return value $? is set to 0 (true) if the command succeded and to 1 (false) otherwise.