On 09.08.2017 20:49, Matthias Urlichs via Owfs-developers wrote:
On 09.08.2017 19:46, Martin Patzak (GMX) wrote:
SUBSYSTEMS=="usb", ATTRS{manufacturer}=="FTDI",
ATTRS{product}=="FT232R USB UART", ATTRS{serial}=="A800bXHr",
GROUP="owsrv", MODE="0664", SYMLINK+="LinkUSB"
For me this works perfectly (a) without the symlink (b) with an
additional DRIVER=="USB" condition.
(a) symlinking doesn't work with USB bus entries.
(b) is required because you don't want to use the TTY. owserver needs
to access the "raw" USB device, i.e. (in my case)
/sys/devices/platform/soc/20980000.usb/usb1/1-1/1-1.3
instead of
/sys/devices/platform/soc/20980000.usb/usb1/1-1/1-1.3/1-1.3\:1.0/tty/ttyACM0
Matthias, thank you for your swift and in-depth response.
For today I am udev-ed out! So I will try your changes to my rule tomorrow.
Meanwhile I was tinkering some more and I found the device node that
owserver uses:
/ls -al /dev/bus/usb/003/017
crw-rw-r-- 1 root root 189, 272 Aug 9 21:05 017
/I changed the group of that node to 'owsrv' and owserver with ftdi:...
does indeed start without sudo!
Martin
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