No panda after switching branches

[goodchoom]

Describe the bug

After switching branches from mlsim_v4 to master_ci, openpilot was unable to go onroad due to the no panda error. After turning the car off and rebooting the device to no avail, I then unplugged the cable then plugged it back in after waiting 30 seconds, which seems to have resolved the issue.

Provide a route where the issue occurs

ed882557605319f9/00000113--d26a86efa7

openpilot version

074f1c9

Additional info

No response

[BBBmau]

had the same experience when updating to the latest commit on master. No branch switching. Another reboot was needed before the Panda Error was resolved.

[adeebshihadeh]

Seems to be related to the panda and hardwared setting up the amp. I'm thinking it's a race condition that the boot time speedup in AGNOS 11 is causing us to hit now. There's a libusb later (FD leak?), but that looks separate.

I reverted it for now, but I'll keep this open until it's merged again and fully root caused.