adb via usb, coowell v5 and other amlogic 905s

[harvdig]

I have several recent amlogic sticks (mk809IV pro, coowell v5, mk808b pro), and none of them will connect over the usb port using adb. I can get abd connection via wifi, but not the OTG usb port.

Anyone seen this?

Under linux I briefly get a idVendor:idProduct listing in lsusb, but it goes away as soon as the system fully boots. Same hardware (mk808b pro) with custom firmware works fine.

[harvdig]

Just bumping this up again. I've tried everything I can find, but it's persistently dropping the connection as soon as the android OS fully boots. Bought units from a couple different vendors, all have the same behavior. See dmesg below:

[ 1963.846206] usb 2-1.4: new high-speed USB device number 7 using ehci-pci
[ 1963.940773] usb 2-1.4: New USB device found, idVendor=1b8e, idProduct=c003
[ 1963.940780] usb 2-1.4: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 2004.862381] usb 2-1.4: USB disconnect, device number 7