which should be easy, but apparently is not? So I have a LED attached to PJ05. I configure the pin in my DTS like this: gpio@2200000 { nice-led-pj5 { gpio-hog; gpios = <TEGRA_MAIN_GPIO(J, 5) GPIO_ACTIVE_HIGH>; output-high; line-name = "nice-led-pj5"; }; }; When I boot, the…

[image] EmbeddedRod: BTW the documentation on how to calculate the offsets is wrong: You need to sum to the output of the formula the pin nr. ), hello EmbeddedRod, FYI, we had also revise documentation to fix the calculation formula. please expect next public release version would include t…

hello EmbeddedRod, please note that, there’s offset values you should check during the kernel init, for example, $ dmesg | grep "registered GPIOs" [ 0.478688] gpiochip_setup_dev: registered GPIOs 320 to 511 on device: gpiochip0 (tegra-gpio) [ 0.482675] gpiochip_setup_dev: registered GPIOs 2…

Hi Jerry! Thanks for your response. does Jetson-GPIO also work with gpios that are not exposed in the 40-pin header? Thanks Rodolfo

Ok so I figured out that PBB1 is gpio 397 in the legacy interface (BTW the documentation on how to calculate the offsets is wrong: You need to sum to the output of the formula the pin nr. ), and it works using /sys/class/gpio/export and friends. This said it does not work with the gpiod interface, a…

Thanks!! it is fantastic! much better than doing 21 * 8 + 320 + 1…

Using gpios with gpioset

Robotics & Edge Computing Jetson Systems Jetson TX2

JDSchroeder May 19, 2020, 7:10pm 6

Here is a simple table you can use to look up the value for any of the Tegra GPIOS:

GPIO number

How to get the address of gpio register

Pinmux file in uboot for TX2 4GB

TOUCH_CLK - B24 pin as GPIO

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Using gpios with gpioset

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