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tjvr/99-pico.rules

Created April 6, 2021 19:08
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Raspberry Pi Pico/RP2040 udev rules
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99-pico.rules
# /etc/udev/rules.d/99-pico.rules
# Make an RP2040 in BOOTSEL mode writable by all users, so you can `picotool`
# without `sudo`.
SUBSYSTEM=="usb", ATTRS{idVendor}=="2e8a", ATTRS{idProduct}=="0003", MODE="0666"
# Symlink an RP2040 running MicroPython from /dev/pico.
#
# Then you can `mpr connect $(realpath /dev/pico)`.
SUBSYSTEM=="tty", ATTRS{idVendor}=="2e8a", ATTRS{idProduct}=="0005", SYMLINK+="pico"
@FilipDominec
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FilipDominec commented Aug 22, 2025 •
edited
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For Pico2 featuring the RP2350 chip, I started getting picotool complaints like:

RP2350 device at bus 1, address 36 appears to be in BOOTSEL mode, but picotool was unable to connect. Maybe try 'sudo' or check your permissions.

I needed to add

SUBSYSTEM=="tty", ATTRS{idVendor}=="2e8a", ATTRS{idProduct}=="000f", SYMLINK+="pico"

I.e. the entry has to be almost duplicated, just taking into account different idProduct. This shouldn't interfere with the rest of the trick.

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