sonyan11

Dear @tooz Thank you so much, I have updated kenel and have successfully control the vbus. I am super happy to get this result. I deeply appreciate your contribution to this forum. Best regards,

@tooz Hello. I followed your instruction about usb-c. I use "linux4.4 debian10". echo on > /sys/kernel/debug/fe800000.dwc3/vbus echo off > /sys/kernel/debug/fe800000.dwc3/vbus The result is -bash: /sys/kernel/debug/fe800000.dwc3/vbus: Permission denied I cannot find vbus as follows. ~# ls /sys/kernel/debug/fe800000.dwc3/ ep0in ep1in ep2in ep3in ep4in ep5in ep6in mode testmode ep0out ep1out ep2out ep3out ep4out ep5out link_state regdump I would be grateful if you could help me.

Dear @tooz, Thank you very much for your comment. I apologize for not presenting my environment first. I use Kernel 4.4. I have done the followings and still the UVC is not recognized as a module. 1. Installing the build tools $ sudo apt-get install git-core gitk git-gui gcc-arm-linux-gnueabihf device-tree-compiler gcc-aarch64-linux-gnu mtools parted libssl-dev 2. Build Kernel $ cd [source code] $ make ARCH=arm64 tinker2_defconfig $ make menuconfig Modify USB Video Class to module. Device Drivers> Multimedia Support > Media USB Adapters > USB Video Class [*] → [M] $ make ARCH=arm64 rk3399-tinker_board_2.img CROSS_COMPILE=aarch64-linux-gnu- -j8 3. Install Kernel $ sudo dd if=boot.img of=/dev/mmcblk1p4 status=progress && sync $ sudo reboot Please let me know if I am missing a process that we need. Best regards,

Hello. I use tinker board 2S. Previously, I received following advice about UVC Cam. Now I tried to change uvc cam setting to module by following https://github.com/TinkerBoard/TinkerBoard/wiki/Developer-Guide. However, I cannot find uvc related topic at make menuconfig Please tell me the correct way to change .config in order to compiled uvcvideo driver to module. Best regards,

Hello, I use Tinker board 2S. OS: Tinker Board 2 Debian 10 V2.1.6 I would like to change quirks of uvcvideo driver. I tried: sudo modinfo uvcvideo and got: modinfo: ERROR: Module uvcvideo not found. I also tried sudo modprobe uvcvideo quirks=0x80 ,but cannot find any changes in /sys/module/uvcvideo/parameters/quirks. It looks like it's not working properly. Anyone know how to deal with this? Unfortunately, I do not have much experience in Linux Kernel, please let me know if my question is completely out of scope. Best regards,