16:21 <re_irc> <@arnoldanderson:matrix.org> Hello there! Guys, can you help me, please, with the udev rule to give group of users the ownership on the device and all the permissions for all other users?

16:21 <re_irc> I tried to create the udev rule for Micro:bit V1 controller to code for it, but rule doesn't work, I checked it out on two different machines, the same result on both (Gentoo machine and the second is Fedora)

16:21 <re_irc> Logs are empty, no errors at all. Checked logs with the following command: "sudo journalctl -u systemd-udevd --since "5 minutes ago""

16:21 <re_irc> There is some info about what is going on on my machine now:

16:21 <re_irc> [anderson@rpi4]~% ls -l /dev/hidraw*

16:21 <re_irc> Prove that there is no permissions over the device:

16:21 <re_irc> crw-------. 1 root root 234, 0 Jun 3 10:23 /dev/hidraw0

16:22 <re_irc> Udev rule that I tried

16:22 <re_irc> [anderson@rpi4]~% cat /etc/udev/rules.d/99-microbit.rules

16:22 <re_irc> # CMSIS-DAP for microbit

16:22 <re_irc> SUBSYSTEM=="usb", ATTR{idVendor}=="0d28", ATTR{idProduct}=="0204", GROUP="plugdev", MODE="666"

16:22 <re_irc> Yes, I'm in group plugdev

16:22 <re_irc> [anderson@rpi4]~% groups

16:22 <re_irc> anderson wheel video docker plugdev

16:22 <re_irc> Yes, there is no permissions on exactly that device:

16:22 <re_irc> [anderson@rpi4]~% lsusb | grep -i "NXP ARM mbed"

16:22 <re_irc> Bus 001 Device 004: ID 0d28:0204 NXP ARM mbed

16:22 <re_irc> [anderson@rpi4]~% udevadm info /dev/hidraw0

16:22 <re_irc> P: /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.1/1-1.1:1.3/0003:0D28:0204.0002/hidraw/hidraw0

16:22 <re_irc> Yes, user from the group has permissions to read that rule

16:22 <re_irc> [anderson@rpi4]~% ls -l /etc/udev/rules.d/99-microbit.rules

16:22 <re_irc> -rw-r--r--. 1 anderson root 120 Jun 3 10:20 /etc/udev/rules.d/99-microbit.rules

16:22 <re_irc> Yes, I've reloaded udev rules, at least twice, and even rebooted the machine

16:22 <re_irc> There is guide for rust that I'm partially following to https://docs.rust-embedded.org/discovery/microbit/03-setup/linux.html

16:22 <re_irc> There is no help in linux chats, so I decided to go in Rust chat, sorry for kind of offtop

17:15 <re_irc> <@TimSmall:matrix.org> If you're using a systemd based distro, then you could "systemctl edit systemd-udevd.service" and change "ExecStart=" to add the debug ("-D") flag to udev.

17:16 <re_irc> <@TimSmall:matrix.org> (or rather add it to the commandline args for "systemd-udevd").

17:16 <re_irc> <@TimSmall:matrix.org> 4nd3rs0n: ^

17:18 <re_irc> <@TimSmall:matrix.org> BTW, the rules file shouldn't need to have any special ownership or perms - root ownership is fine.

17:57 <re_irc> <@arnoldanderson:matrix.org> Thank you a lot!

17:58 <re_irc> <@arnoldanderson:matrix.org> Useful information

18:48 <re_irc> <@tiwalun:matrix.org> 4nd3rs0n: Maybe the subsystem is wrong? The rule specifies usb, but it seems to be in the hidraw subsystem.

18:52 <re_irc> <@adamgreig:matrix.org> Have you unplugged and replugged the device after reloading the udev rules?

18:53 <re_irc> <@adamgreig:matrix.org> Also for hid devices I didn't think you needed permissions set, it goes through the kernel hid stuff

18:53 <re_irc> <@adamgreig:matrix.org> Could you run probe-rs with trace logs and upload them somewhere?

22:53 <re_irc> <@sparky:matrix.possumlodge.me> when flashing an esp32c3, does this app/part size % indicate how full the onboard flash is?

22:53 <re_irc> Finished release [optimized] target(s) in 0.56s

22:53 <re_irc> Crystal frequency: 40MHz

22:53 <re_irc> Flash size: 4MB

22:53 <re_irc> Chip type: ESP32-C3 (revision 4)

22:53 <re_irc> Features: WiFi

22:53 <re_irc> MAC address: 64:e8:33:db:e7:60

22:53 <re_irc> App/part. size: 846080/1048576 bytes, 80.69%

22:53 <re_irc> [00:00:00] ######################################## 12/12 segment 0x0 [00:00:00] ######################################## 1/1 segment 0x8000 [00:00:08]...

22:53 <re_irc> ... ######################################## 487/487 segment 0x10000

22:53 <re_irc> cause 80% full with 4MB just for using wifi to setup a ping is pretty intense imo...

22:53 <re_irc> <@9names:matrix.org> i think mine is being caught by jlink's udev rules, which look like this:

22:53 <re_irc> KERNEL=="hidraw*", ATTRS{idProduct}=="0204", ATTRS{idVendor}=="0d28", MODE="666"

22:53 <re_irc> <@9names:matrix.org> ^ @4nd3rs0n

22:54 <re_irc> <@9names:matrix.org> * 4nd3rs0n

23:06 <re_irc> <@9names:matrix.org> looks like mine is also being handled by openocd and probe.rs blanket rules file, since iProduct contains the string "CMSIS-DAP".

23:06 <re_irc> if you don't have openocd installed, try adding the probe-rs' udev rules (https://probe.rs/docs/getting-started/probe-setup/)