Archos support proposes a solution to the bug on ADB connection mode with Mac OSX 10.6.2 with firmwares updates since 1.4.07 to the latest 1.4.16 :
You actually need to modify or create the adb_usb.ini file
In terminal, you need to type :
echo "0x0e79" >~/.android/adb_usb.ini
Then
./adb kill-server
and
./adb start-server
I just modify the first command in order to preserve the original contents of the ~/.android/adb_usb.ini file by issuing the following command
echo "0x0e79" >> ~/.android/adb_usb.ini
Here is the result :
$ adb devices
List of devices attached
$ adb devices
List of devices attached
$ more ~/.android/adb_usb.ini
# ANDROID 3RD PARTY USB VENDOR ID LIST -- DO NOT EDIT.
# USE 'android update adb' TO GENERATE.
# 1 USB VENDOR ID PER LINE.
$ echo "0x0e79" >> ~/.android/adb_usb.ini
$ more ~/.android/adb_usb.ini
# ANDROID 3RD PARTY USB VENDOR ID LIST -- DO NOT EDIT.
# USE 'android update adb' TO GENERATE.
# 1 USB VENDOR ID PER LINE.
0x0e79
$ adb kill-server
$ adb start-server
$ adb devices
List of devices attached
A5S-xxxx0004-xxxx0000-0403xxxx-1500xxxx device