GPIO SIM #46
GPIO SIM #46
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Trenton-Ruf
commented
Jun 8, 2024
Trenton-Ruf
commented
- Script to build and install the Debian Linux kernel with the GPIO-SIM module support.
- Script to parse the C3 device-tree and setup matching simulated GPIO on a development machine.
- Script to tear down the simulated GPIO.
- Script to give user permissions to the simulated GPIO.
Summary clarification
gpio-sim summary in main README
gpio_sim/kernel_build_debian.sh
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| sudo apt-get update | ||
| sudo apt-get -y install dpkg-dev | ||
| sudo apt-get -y install build-essential fakeroot | ||
| sudo apt-get -y build-dep linux | ||
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| # Get linux source | ||
| sudo apt-get -y install linux-source |
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I would avoid apt-get in scripts. A better place would be in the README
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Sure, I'll move them out later today.
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Moved all apt-get commands to the README 43fb2a9
gpio_sim/kernel_build_debian.sh
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| sudo apt-get update | ||
| sudo apt-get -y install dpkg-dev | ||
| sudo apt-get -y install build-essential fakeroot | ||
| sudo apt-get -y build-dep linux | ||
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| # Get linux source | ||
| sudo apt-get -y install linux-source |
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This will be a different kernel from what we use. May not matter at long as it is a 5.10 release?
Depends how this is used.
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This is meant to be run on development machines to simulate the C3 GPIO. Unfortunately we can't have matching kernel version to the real C3 because the GPIO-SIM module requires at least version 5.19. So I had it grab the latest kernel instead.
| script_dir=$(dirname "${BASH_SOURCE[0]}") | ||
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| # The device tree file to parse | ||
| FILE=$script_dir/../device_trees/oresat-c3-0601.dts |
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If this is running on an OreSat card, you can read from /boot/dtbs/<kernel_verion>/am335x-pocketbeagle.dtbo (it is symbolically linked to correct device tree) rather than hard-coding this
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Since this will be running on a development machine rather than the C3 it needs to grab the dts file.
