CM-T3730: Linux: Known Issues

Input

Some Angstrom GUI setup utilities require superuser password, but do not accept it. Workaround: login as root.

USB OTG

Sometimes the USB OTG port fails to transition from Host mode to Peripheral mode. Workaround: Unplug the USB cable from the CM-T3730 USB OTG port Remove the USB Gadget driver module from the kernel: root@cm-t3730:~# modprobe -r g_ether Load the USB Gadget driver module again: root@cm-t3730:~# modprobe g_ether Plug the USB cable back to CM-T3730 USB OTG port

Power management

OTG port: in gadget mode prevents SoC entering sys off mode state. Workaround: Unload the gadget driver module prior entering the off mode. OTG port: USB flash drive does not work properly after resume. Workaround: Use USB Host ports for USB flash drives. DSP activity prevents SoC entering sys off mode state. Workaround: Stop any encoding/decoding process prior entering the off mode. Bluetooth device does not work properly after resume. Workaround: stop the hciattach process and reinitialize the BT device.