GPIO6 In Use

[Eric1975]

Hi,

I’m trying to use GPIO 6 (PCC.03), however it seems to be in use by a process or the kernel.

sudo gpioinfo 1
...
line  15:     "PCC.03"        "mux"  output  active-high [used]
...

sudo gpioget 1 15
gpioget: error reading GPIO values: Device or resource busy

Any tips as to how I can free up this pin?

[JerryChang]

hello Eric1975,

it’s used by camera use-case as i2c bus multiplexer,
for instance, #define CAM_I2C_MUX TEGRA234_AON_GPIO(CC, 3)
you may disable it from device tree if you’re not using cameras.