i.MX8M Mini - USB isochronous transfer fail

[Jamie01]

Hi,

We cannot get the following USB camera to work and start streaming.

libuvc calls "libusb_submit_transfer fail return -1". This is USB isochronous transfer failing. It failed when uvc_stream_start USB was transferring.

It seems the issue could be related to i.MX8M Mini USB full speed. We tested the same camera sample on the other board with i.MX8M Plus CPU. It works out normally. 

Please help to solve this issue. 

Please find the following link for the camera specs: 

PureThermal 2

https://groupgets-files.s3.amazonaws.com/PT2/PureThermal%202%20-%20Datasheet%20-%201.7.pdf

Lepton_Series

https://groupgets-files.s3.amazonaws.com/lepton/Resources/Lepton%20Series%20Datasheet.pdf

[jimmychan]

Which version of BSP are you using?

Which board are you using?

[Jamie01]

By the way, it shows "[ 940.873815] usb 1-1: usbfs: usb_submit_urb returned -28"
From kernel's USB driver error log