I am using ubuntu Linux 10.04 Pc in that my Samsung Galaxy 7\" (GT-P6210) homeycomb 3.2 is not detecting for development its showing in ecl
I'm having the same problem. Strangely, I can sometimes get the device to list correctly, but other times, it just won't work. Restarting my Linux laptop resolves the issue. What a pain!!
Today, I discovered that if I suspend my laptop, then turn it back on, it detects the device correctly again! That really beats restarting the OS.