philip Posted November 15, 2018 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
sgjava Posted November 26, 2018 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.
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