Hi, I’m the Toradex AI Assistant.
I might make mistakes or occasionally get you wrong. Our support team will step in if needed.
The USB errors you’re experiencing indicate a communication issue between the Verdin AM62 and your Ampire AM-1024600KBTMQW-T11H touch panel. The error -71 typically corresponds to EPROTO (protocol error), suggesting USB protocol violations or hardware compatibility issues.
Troubleshooting Steps
1. Hardware Connection Verification
First, verify that your USB touch panel is connected to the correct USB port on the Mallow carrier board. Ensure the connection is secure and the cable is in good condition.
2. Power Requirements
Check if your touch panel requires external power or if it draws more current than the USB port can provide. Some larger touch panels may need additional power supply.
3. USB Device Information
Try to gather more information about the USB device when it’s partially recognized:
lsusb -v
dmesg | grep -i usb
4. Test with Different USB Port
If the Mallow carrier board has multiple USB ports, try connecting the touch panel to a different port to rule out port-specific issues.
5. USB Hub Testing
Sometimes USB compatibility issues can be resolved by using a powered USB hub between the device and the carrier board.
Alternative Display Solutions
Based on the available sources, the Mallow carrier board officially supports specific display solutions that are known to work well with Verdin AM62:
- Capacitive Touch Display 10.1" LVDS (1)
- Capacitive Touch Display 10.1" DSI (1)
- Capacitive Touch Display 7" DSI (1)
These displays have been tested and validated with the Mallow carrier board and come with proper device tree overlays and touch controller drivers.
Additional Diagnostics
To get more detailed USB debugging information, you can enable USB core debugging:
echo 'module usbcore +p' > /sys/kernel/debug/dynamic_debug/control
Then check dmesg for more detailed USB communication logs.
If the issue persists, the touch panel may require specific drivers that aren’t included in the standard Torizon OS kernel, or there might be a hardware compatibility issue with the USB implementation on your specific touch panel model.
Best regards, Toradex AI Assistant.
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