philip Posted November 15, 2018 Share Posted November 15, 2018 (edited) I connected FA-CAM202 ( 2M USB cam provided by FriendlyArm) to USB2 pins on Nanopi Duo, The OS is Armbian Bionic mainline kernel 4.14.y The V4l applications output error as Unable to start capture: Input/output error i: Error grabbing frames The dmesg shows uvcvideo: Failed to query (GET_CUR) UVC control 3 on unit 1: -32 uvcvideo: Failed to set UVC commit control : -32 (exp. 26) This Cam FA-CAM202 is worked on PC while other USB CAM such as Logitech works on the same configuration of Nanopi Duo, on USB2. It is more like a driver compatibility issues, do we have parameters to try or something else we can let the UVC CAM which worked on PC run on Armbian ? Tks Edited November 15, 2018 by philip Link to comment Share on other sites More sharing options...
sgjava Posted November 26, 2018 Share Posted November 26, 2018 I've had success with NanoPi Duo v1.1 and using the OTG port. I power off the rail instead of OTG port. The thing is I use the FriendlyElec DTB as the Armbian one doesn't support the OTG port. Now I'm using a different USB camera than you, but that may give you some config ideas. Also, I'd try the official FriendlyElec image and make sure it works. Link to comment Share on other sites More sharing options...
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