(Raspberry PI 5 + Astra Pro HD Camera) Device response with bad magic 0x0, Failed to

[coqs]

fll@fll-desktop:/pyorbbecsdk/examples$ sudo -E PYTHONPATH=/pyorbbecsdk/install/lib python3 depth.py
load extensions from /home/fll/pyorbbecsdk/install/lib/extensions
[01/23 09:57:17.767752][error][4377][UsbEnumeratorLibusb.cpp:157] Invalid descriptor index: 0
[01/23 09:57:17.767782][error][4377][UsbEnumeratorLibusb.cpp:403] Failed to query USB device serial number
[01/23 09:57:17.769244][error][4377][UsbEnumeratorLibusb.cpp:157] Invalid descriptor index: 0
[01/23 09:57:17.769260][error][4377][UsbEnumeratorLibusb.cpp:419] Failed to query USB device interface name
[01/23 09:57:17.826335][error][4377][UsbEnumeratorLibusb.cpp:157] Invalid descriptor index: 0
[01/23 09:57:17.826357][error][4377][UsbEnumeratorLibusb.cpp:403] Failed to query USB device serial number
[01/23 09:57:18.850015][error][4377][ObV4lUvcDevicePort.cpp:979] set xu failed, errno: No such file or directory
[01/23 09:57:18.950135][error][4377][ObV4lUvcDevicePort.cpp:979] set xu failed, errno: No such file or directory
Traceback (most recent call last):
File "/home/fll/pyorbbecsdk/examples/depth.py", line 107, in
main()
File "/home/fll/pyorbbecsdk/examples/depth.py", line 45, in main
pipeline = Pipeline()
^^^^^^^^^^
RuntimeError: Request failed, statusCode: 5, msg: Device response with bad magic , magic=0x0, expectOpCode=0x4252
fll@fll-desktop:~/pyorbbecsdk/examples$

[gongye2]

@coqs
Thank you for reporting this issue and providing the detailed logs.

Based on the error logs, we can see a clear USB communication failure chain:

[error] Invalid descriptor index: 0
[error] Failed to query USB device serial number
[error] Failed to query USB device interface name
[error] set xu failed, errno: No such file or directory
RuntimeError: Device response with bad magic 0x0, expectOpCode=0x4252

This "magic 0x0" error indicates the device is not returning valid response packets, which typically happens when:

• The USB connection is unstable or the device is underpowered
• The device is running at USB 2.0 instead of USB 3.0 (insufficient bandwidth)
• USB cable or port issues
• libusb or system driver compatibility problems

To help diagnose this issue, could you please provide the following information:

1. pyorbbecsdk version: Run pip show pyorbbecsdk and share the output

2. Camera model: What specific Astra Pro HD model number are you using? (This helps us verify Linux/Raspberry Pi compatibility)

3. USB connection details:

   • What type of USB cable are you using? (USB 3.0 cable is recommended)
   • Are you connecting directly to Raspberry Pi 5 or through a USB hub?
   • If using a hub, is it powered?

4. System information: What operating system and version are you running on Raspberry Pi 5?

5. Device enumeration: Please run the enumerate.py example and share the output. This will help us confirm if the device is being detected correctly.

6. USB topology: Please run lsusb -t and share the output to verify whether the device is running at USB 3.0 (5000M) or USB 2.0 (480M) speed.

7. Kernel logs: Please run dmesg | grep -i usb after connecting the camera and share any relevant messages.

Important note: Some Astra Pro HD camera models may require specific drivers or firmware to work properly on Linux/Raspberry Pi. The fact that USB enumeration is failing at the descriptor level suggests this could be a hardware compatibility or connection issue.

Once we have this information, we can better determine whether this is a:

• USB connectivity/power issue
• Device compatibility issue
• Driver/firmware issue

Looking forward to your response!