Thx for your suggestions.
Re 1): The Etrex has an additional SD-Card that I can access with the method described (used for copying maps). But that does not help in accessing tracks, routes or waypoints in the internal memory.
Re 3):
ls -lrt /dev/bus/usb/001/003 crw-rw-rw- 1 root plugdev 189, 2 Sep 28 18:53 /dev/bus/usb/001/003My user is member of plugdev, I alway tried to access as user and root, and my example gpsbabel-command is just for
reading which should work.
Re 2): That udev rule already was amongst the ones I tries. But now i followed some of the links you gave in 1) and 2), and one lead me to a newer post at qlandkartegt, stating that rule was for pre-3.x kernels while newer need another syntax:
Newer kernels need a similar udev rules file, however with slightly different content.
You should enter:
ATTRS{idVendor}=="091e", ATTRS{idProduct}=="0003", MODE="0660", GROUP="plugdev"
I did that, to no avail. Meanwhile I know that I have no clue about syntax and writing of udev-rules. Searching the web I found the above one as well as one with ATTR (without S). And both versions I've seen with a 'SUBSYSTEM="usb"' or SUBSYTEMS=="usb" at the beginnig of the line. Tried all versions, no success