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[For FAQ?] UDEV Magic

See original GitHub issue

From Project Icestorm homepage:

Notes for Linux: Create a file /etc/udev/rules.d/53-lattice-ftdi.rules with the following line in it to allow uploading bit-streams to a Lattice iCEstick and/or a Lattice iCE40-HX8K Breakout Board as unprivileged user:

ACTION=="add", ATTR{idVendor}=="0403", ATTR{idProduct}=="6010", MODE:="666"

This did not work for me on Debian9. Other tries like setting the device node’s ownership/permissions right for my account failed too.

After digging a while, I found Debian’s fpga-icestorm_*.deb includes this UDEV rule:

ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6010", MODE="0660", GROUP="plugdev", TAG+="uaccess"

This one worked here and now I can drop sudo for loading the FPGA.

Issue Analytics

State:
Created 6 years ago
Comments:6 (1 by maintainers)

Top GitHub Comments

1reaction

cliffordwolfcommented, Nov 18, 2017

Updated the website.

1reaction

rqoucommented, Nov 15, 2017

Heh, azonenberg/openfpga had this same issue. According to @cyrozap,

`TAG+="uaccess"` is for systemd compatibility and `MODE="660", GROUP="plugdev"` is for non-systemd systems. This is the same pattern OpenOCD uses for its udev rules.

So the proposed change to the FAQ should be correct.

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