root@rk3566-buildroot:/# uname -a
root@rk3566-buildroot:/# lsusb
root@rk3566-buildroot:/# v4l2-ctl --list-devices
root@rk3566-buildroot:/# v4l2-ctl --list-formats-ext -d /dev/video10
root@rk3566-buildroot:/# v4l2-ctl -D -d /dev/video10
【卡顿】
gst-launch-1.0 v4l2src device=/dev/video10 ! videoconvert ! video/x-raw,format=NV12,width=1920,height=1080 !  waylandsink
gst-launch-1.0 v4l2src  device=/dev/video10 ! image/jpeg,width=1920,height=1080 ! jpegdec ! videoconvert ! autovideosink

录像：【边路边播放】
gst-launch-1.0 v4l2src device=/dev/video10 num-buffers=300 ! videoconvert !  video/x-raw,format=NV12,width=1920,height=1080 ! tee name=t ! queue ! mpph264enc ! queue ! h264parse ! qtmux ! filesink location=1080p-yuv300.mp4 t. ! queue ! waylandsink

gst-launch-1.0 v4l2src device=/dev/video10 ! videoconvert ! video/x-raw,format=NV12,width=640,height=512 !  waylandsink

20250320在荣品的PRO-RK3566开发板的buildroot系统下使用J27口的OTG0口接鼠标
2025/3/20 9:24

缘起：在荣品的PRO-RK3566开发板的buildroot系统下，使用USB摄像头出图即可。
可以使用HOST1和HOST2，对于J27引脚的OTG0，需要将OTG模式切换为HOST模式。

@余顺?最右边的 USB口【刷机口】不能接USB摄像头？接了USB摄像头没有反应。

参考资料：
https://doc.rpdzkj.cn/#/zh_cn/%E7%91%9E%E8%8A%AF%E5%BE%AE%E7%B3%BB%E5%88%97/rk3566-rk3568/8.%E6%8E%A5%E5%8F%A3%E4%BD%BF%E7%94%A8?id=linux

Linux
Linux 的 otg 口默认上电为 device 功能

查看当前模式

cat /sys/kernel/debug/usb/fcc00000.dwc3/mode 
复制Error已复制
typeA切换模式命令

切换至 host 模式，可接外设，如U盘鼠标

echo host > /sys/kernel/debug/usb/fcc00000.dwc3/mode 
复制Error已复制
切换至 device，默认为ADB设备

echo peripheral > /sys/kernel/debug/usb/fcc00000.dwc3/mode 
复制Error已复制
5.10 内核配置，OTG切换模式方法

切换至 host 模式，可接外设，如U盘鼠标

echo host > /sys/kernel/debug/usb/fcc00000.dwc3/mode 
复制Error已复制
切换至 device，默认为ADB设备

echo device > /sys/kernel/debug/usb/fcc00000.dwc3/mode 

完整的LOG：

:/sys/kernel/debug/usb/fcc00000.dwc3# 
root@rk3566-buildroot:/sys/kernel/debug/usb/fcc00000.dwc3# cat mode 
device
root@rk3566-buildroot:/sys/kernel/debug/usb/fcc00000.dwc3# 
root@rk3566-buildroot:/sys/kernel/debug/usb/fcc00000.dwc3# echo host > mode
[  904.102207] dwc3 fcc00000.dwc3: request 00000000612df501 was not queued to ep0out
root@rk3566-buildroot:/sys/kernel/debug/usb/fcc00000.dwc3# [  904.102454] android_work: did not send uevent (0 0 0000000000000000)
[  904.210061] xhci-hcd xhci-hcd.7.auto: xHCI Host Controller
[  904.210835] xhci-hcd xhci-hcd.7.auto: new USB bus registered, assigned bus number 5
[  904.211203] xhci-hcd xhci-hcd.7.auto: hcc params 0x0220fe64 hci version 0x110 quirks 0x0000002022010010
[  904.211305] xhci-hcd xhci-hcd.7.auto: irq 87, io mem 0xfcc00000
[  904.211625] xhci-hcd xhci-hcd.7.auto: xHCI Host Controller
[  904.212591] xhci-hcd xhci-hcd.7.auto: new USB bus registered, assigned bus number 6
[  904.212680] xhci-hcd xhci-hcd.7.auto: Host supports USB 3.0 SuperSpeed
[  904.213121] usb usb5: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.10
[  904.213161] usb usb5: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[  904.213185] usb usb5: Product: xHCI Host Controller
[  904.213207] usb usb5: Manufacturer: Linux 5.10.198 xhci-hcd
[  904.213228] usb usb5: SerialNumber: xhci-hcd.7.auto
[  904.213988] hub 5-0:1.0: USB hub found
[  904.214042] hub 5-0:1.0: 1 port detected
[  904.214470] usb usb6: We don't know the algorithms for LPM for this host, disabling LPM.
[  904.214582] usb usb6: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.10
[  904.214593] usb usb6: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[  904.214601] usb usb6: Product: xHCI Host Controller
[  904.214609] usb usb6: Manufacturer: Linux 5.10.198 xhci-hcd
[  904.214615] usb usb6: SerialNumber: xhci-hcd.7.auto
[  904.216116] hub 6-0:1.0: USB hub found
[  904.216174] hub 6-0:1.0: 1 port detected
[  904.462132] usb 5-1: new high-speed USB device number 2 using xhci-hcd
[  904.604520] usb 5-1: New USB device found, idVendor=2bdf, idProduct=0289, bcdDevice=33.00
[  904.604603] usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  904.604631] usb 5-1: Product: 1080P USB Camera
[  904.604653] usb 5-1: Manufacturer: SN0002
[  904.604673] usb 5-1: SerialNumber: 44434000_P030102_SN0002
[  904.771276] uvcvideo: Found UVC 1.00 device 1080P USB Camera (2bdf:0289)
[  904.832865] uvcvideo: Failed to query (GET_INFO) UVC control 12 on unit 2: -32 (exp. 1).
[  905.054199] cdc_acm 5-1:1.4: ttyACM0: USB ACM device
[  905.071176] hid-generic 0003:2BDF:0289.0003: hiddev96,hidraw0: USB HID v1.01 Device [SN0002 1080P USB Camera] on usb-xhci-hcd.7.auto-1/input6

root@rk3566-buildroot:/sys/kernel/debug/usb/fcc00000.dwc3# 
root@rk3566-buildroot:/sys/kernel/debug/usb/fcc00000.dwc3# 
root@rk3566-buildroot:/sys/kernel/debug/usb/fcc00000.dwc3# lsusb
Bus 005 Device 001: ID 1d6b:0002
Bus 003 Device 001: ID 1d6b:0001
Bus 002 Device 002: ID 05e3:0610
Bus 001 Device 001: ID 1d6b:0002
Bus 005 Device 002: ID 2bdf:0289
Bus 008 Device 001: ID 1d6b:0003
Bus 006 Device 001: ID 1d6b:0003
Bus 004 Device 001: ID 1d6b:0001
Bus 002 Device 001: ID 1d6b:0002
Bus 007 Device 001: ID 1d6b:0002
root@rk3566-buildroot:/sys/kernel/debug/usb/fcc00000.dwc3#     /bin/list-iodomain.sh version: V1.0.1 
    Get CHIP ID: rk356x 
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 
    XXXXXXXXXX      PLEASE CHECK IO-DOMAIN !!!!!!!!!!!!!!! 
    XXXXXXXXXX        请务必检查IO电源域配置  !!!!!!!!!!!!!!! 
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 
    Get IO DOMAIN VALUE: 
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 
    注意事项：PMUIO1/PMUIO2 固定不可配 
    VCCIO2电平由硬件FLASH_VOL_SEL决定: 
    当VCCIo2供电是1.8V,则FLASH_VOL_SEL管脚必须保持为高电平; 
    当VCCIO2供电是3.3V,则FLASH_VOL_SEL管脚必须保持为低电平; 
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 
    pmuio2_vsel: 3.3V 
    vccio7_vsel: 3.3V 
    vccio6_vsel: 1.8V 
    vccio5_vsel: 3.3V 
    vccio4_vsel: 3.3V 
    vccio3_vsel: 3.3V 
    vccio2_vsel: 3.3V 
    vccio1_vsel: 3.3V 
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 

root@rk3566-buildroot:/sys/kernel/debug/usb/fcc00000.dwc3# 
root@rk3566-buildroot:/sys/kernel/debug/usb/fcc00000.dwc3# 
root@rk3566-buildroot:/sys/kernel/debug/usb/fcc00000.dwc3# cat mode
host
root@rk3566-buildroot:/sys/kernel/debug/usb/fcc00000.dwc3# 
root@rk3566-buildroot:/sys/kernel/debug/usb/fcc00000.dwc3# cd /dev
root@rk3566-buildroot:/dev# 
root@rk3566-buildroot:/dev# ll video*
lrwxrwxrwx 1 root root      11 Jan  1 20:00 video-camera0 -> /dev/video0
-rw-r--r-- 1 root root       4 Jan  1 20:00 video-dec0
-rw-r--r-- 1 root root       4 Jan  1 20:00 video-enc0
crw-rw---- 1 root video 81,  0 Jan  1 20:00 video0
crw-rw---- 1 root video 81,  1 Jan  1 20:00 video1
crw-rw---- 1 root video 81, 13 Jan  1 20:15 video10
crw-rw---- 1 root video 81, 14 Jan  1 20:15 video11
crw-rw---- 1 root video 81,  2 Jan  1 20:00 video2
crw-rw---- 1 root video 81,  3 Jan  1 20:00 video3
crw-rw---- 1 root video 81,  4 Jan  1 20:00 video4
crw-rw---- 1 root video 81,  5 Jan  1 20:00 video5
crw-rw---- 1 root video 81,  6 Jan  1 20:00 video6
crw-rw---- 1 root video 81,  7 Jan  1 20:00 video7
crw-rw---- 1 root video 81,  8 Jan  1 20:00 video8
crw-rw---- 1 root video 81,  9 Jan  1 20:00 video9
root@rk3566-buildroot:/dev# 
nvert ! video/x-raw,format=NV12,width=1920,height=1080 !  waylandsink0 ! videocon
Setting pipeline to PAUSED ...
[ 1055.723504] uvcvideo: Failed to query (GET_DEF) UVC control 12 on unit 2: -32 (exp. 4).
Pipeline is live and does not need PREROLL ...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
Redistribute latency...
^Chandling interrupt.
Interrupt: Stopping pipeline ...
Execution ended after 0:00:05.064076884
Setting pipeline to NULL ...
Freeing pipeline ...
root@rk3566-buildroot:/dev# 
jpeg,width=1920,height=1080 ! jpegdec ! videoconvert ! autovideosinko10 ! image/ 
Setting pipeline to PAUSED ...
[ 1067.740803] uvcvideo: Failed to query (GET_DEF) UVC control 12 on unit 2: -32 (exp. 4).
Pipeline is live and does not need PREROLL ...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
Redistribute latency...
^Chandling interrupt.
Interrupt: Stopping pipeline ...
Execution ended after 0:00:03.158562275
Setting pipeline to NULL ...
Freeing pipeline ...
root@rk3566-buildroot:/dev# 
root@rk3566-buildroot:/dev#     /bin/list-iodomain.sh version: V1.0.1 
    Get CHIP ID: rk356x 
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 
    XXXXXXXXXX      PLEASE CHECK IO-DOMAIN !!!!!!!!!!!!!!! 
    XXXXXXXXXX        请务必检查IO电源域配置  !!!!!!!!!!!!!!! 
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 
    Get IO DOMAIN VALUE: 
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 
    注意事项：PMUIO1/PMUIO2 固定不可配 
    VCCIO2电平由硬件FLASH_VOL_SEL决定: 
    当VCCIo2供电是1.8V,则FLASH_VOL_SEL管脚必须保持为高电平; 
    当VCCIO2供电是3.3V,则FLASH_VOL_SEL管脚必须保持为低电平; 
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 
    pmuio2_vsel: 3.3V 
    vccio7_vsel: 3.3V 
    vccio6_vsel: 1.8V 
    vccio5_vsel: 3.3V 
    vccio4_vsel: 3.3V 
    vccio3_vsel: 3.3V 
    vccio2_vsel: 3.3V 
    vccio1_vsel: 3.3V 
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 

root@rk3566-buildroot:/dev# 
root@rk3566-buildroot:/dev# cd -
/sys/kernel/debug/usb/fcc00000.dwc3
root@rk3566-buildroot:/sys/kernel/debug/usb/fcc00000.dwc3# 
root@rk3566-buildroot:/sys/kernel/debug/usb/fcc00000.dwc3# ll      
total 0
drwxr-xr-x 2 root root 0 Jan  1 20:14 ./
drwxr-xr-x 9 root root 0 Jan  1  1970 ../
-rw-r--r-- 1 root root 0 Jan  1  1970 link_state
-rw-r--r-- 1 root root 0 Jan  1  1970 lsp_dump
-rw-r--r-- 1 root root 0 Jan  1 20:14 mode
-r--r--r-- 1 root root 0 Jan  1  1970 regdump
-rw-r--r-- 1 root root 0 Jan  1  1970 testmode
root@rk3566-buildroot:/sys/kernel/debug/usb/fcc00000.dwc3# 
root@rk3566-buildroot:/sys/kernel/debug/usb/fcc00000.dwc3# cat mode
host
root@rk3566-buildroot:/sys/kernel/debug/usb/fcc00000.dwc3# 

root@rk3566-buildroot:/sys/kernel/debug/usb/fcc00000.dwc3# 
root@rk3566-buildroot:/sys/kernel/debug/usb/fcc00000.dwc3# 
root@rk3566-buildroot:/sys/kernel/debug/usb/fcc00000.dwc3# [ 1732.335190] usb 5-1: USB disconnect, device number 2
[ 1744.685302] usb 5-1: new low-speed USB device number 3 using xhci-hcd
[ 1744.829412] usb 5-1: New USB device found, idVendor=046d, idProduct=c077, bcdDevice=72.00
[ 1744.829492] usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 1744.829518] usb 5-1: Product: USB Optical Mouse
[ 1744.829539] usb 5-1: Manufacturer: Logitech
[ 1744.847753] input: Logitech USB Optical Mouse as /devices/platform/usbdrd/fcc00000.dwc3/xhci-hcd.7.auto/usb5/5-1/5-1:1.0/0003:046D:C077.0004/input/input6
[ 1744.848165] hid-generic 0003:046D:C077.0004: input,hidraw0: USB HID v1.11 Mouse [Logitech USB Optical Mouse] on usb-xhci-hcd.7.auto-1/input0
[20:29:00.115] event6  - Logitech USB Optical Mouse: is tagged by udev as: Mouse
[20:29:00.115] event6  - Logitech USB Optical Mouse: device is a pointer
[20:29:00.115] libinput: configuring device "Logitech USB Optical Mouse".
[20:29:00.115] associating input device event6 with output HDMI-A-1 (none by udev)
[20:29:18.030] event6  - Logitech USB Optical Mouse: client bug: event processing lagging behind by 11ms, your system is too slow

root@rk3566-buildroot:/sys/kernel/debug/usb/fcc00000.dwc3# 
root@rk3566-buildroot:/sys/kernel/debug/usb/fcc00000.dwc3# 
root@rk3566-buildroot:/sys/kernel/debug/usb/fcc00000.dwc3#  

[ 1860.867162] usb 5-1: USB disconnect, device number 3
[20:30:56.027] event6  - Logitech USB Optical Mouse: device removed

root@rk3566-buildroot:/sys/kernel/debug/usb/fcc00000.dwc3# 
root@rk3566-buildroot:/sys/kernel/debug/usb/fcc00000.dwc3# cd /
root@rk3566-buildroot:/# 
root@rk3566-buildroot:/# lsusb
Bus 005 Device 001: ID 1d6b:0002
Bus 003 Device 001: ID 1d6b:0001
Bus 002 Device 002: ID 05e3:0610
Bus 001 Device 001: ID 1d6b:0002
Bus 008 Device 001: ID 1d6b:0003
Bus 006 Device 001: ID 1d6b:0003
Bus 004 Device 001: ID 1d6b:0001
Bus 002 Device 001: ID 1d6b:0002
Bus 007 Device 001: ID 1d6b:0002
root@rk3566-buildroot:/# cd /dev
root@rk3566-buildroot:/dev# 
root@rk3566-buildroot:/dev# ll video*
lrwxrwxrwx 1 root root     11 Jan  1 20:00 video-camera0 -> /dev/video0
-rw-r--r-- 1 root root      4 Jan  1 20:00 video-dec0
-rw-r--r-- 1 root root      4 Jan  1 20:00 video-enc0
crw-rw---- 1 root video 81, 0 Jan  1 20:00 video0
crw-rw---- 1 root video 81, 1 Jan  1 20:00 video1
crw-rw---- 1 root video 81, 2 Jan  1 20:00 video2
crw-rw---- 1 root video 81, 3 Jan  1 20:00 video3
crw-rw---- 1 root video 81, 4 Jan  1 20:00 video4
crw-rw---- 1 root video 81, 5 Jan  1 20:00 video5
crw-rw---- 1 root video 81, 6 Jan  1 20:00 video6
crw-rw---- 1 root video 81, 7 Jan  1 20:00 video7
crw-rw---- 1 root video 81, 8 Jan  1 20:00 video8
crw-rw---- 1 root video 81, 9 Jan  1 20:00 video9
root@rk3566-buildroot:/dev# [ 1899.121945] usb 5-1: new high-speed USB device number 4 using xhci-hcd
[ 1899.331572] usb 5-1: New USB device found, idVendor=04b4, idProduct=02f8, bcdDevice= 0.00
[ 1899.331647] usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 1899.331675] usb 5-1: Product: AT600
[ 1899.331788] usb 5-1: Manufacturer: IRay
[ 1899.406594] uvcvideo: Found UVC 1.10 device AT600 (04b4:02f8)
[ 1899.440002] cdc_acm: probe of 5-1:1.2 failed with error -22

root@rk3566-buildroot:/dev# 
root@rk3566-buildroot:/dev# ll video*
lrwxrwxrwx 1 root root      11 Jan  1 20:00 video-camera0 -> /dev/video0
-rw-r--r-- 1 root root       4 Jan  1 20:00 video-dec0
-rw-r--r-- 1 root root       4 Jan  1 20:00 video-enc0
crw-rw---- 1 root video 81,  0 Jan  1 20:00 video0
crw-rw---- 1 root video 81,  1 Jan  1 20:00 video1
crw-rw---- 1 root video 81, 13 Jan  1 20:31 video10
crw-rw---- 1 root video 81, 14 Jan  1 20:31 video11
crw-rw---- 1 root video 81,  2 Jan  1 20:00 video2
crw-rw---- 1 root video 81,  3 Jan  1 20:00 video3
crw-rw---- 1 root video 81,  4 Jan  1 20:00 video4
crw-rw---- 1 root video 81,  5 Jan  1 20:00 video5
crw-rw---- 1 root video 81,  6 Jan  1 20:00 video6
crw-rw---- 1 root video 81,  7 Jan  1 20:00 video7
crw-rw---- 1 root video 81,  8 Jan  1 20:00 video8
crw-rw---- 1 root video 81,  9 Jan  1 20:00 video9
root@rk3566-buildroot:/dev# 
root@rk3566-buildroot:/dev#     /bin/list-iodomain.sh version: V1.0.1 
    Get CHIP ID: rk356x 
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 
    XXXXXXXXXX      PLEASE CHECK IO-DOMAIN !!!!!!!!!!!!!!! 
    XXXXXXXXXX        请务必检查IO电源域配置  !!!!!!!!!!!!!!! 
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 
    Get IO DOMAIN VALUE: 
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 
    注意事项：PMUIO1/PMUIO2 固定不可配 
    VCCIO2电平由硬件FLASH_VOL_SEL决定: 
    当VCCIo2供电是1.8V,则FLASH_VOL_SEL管脚必须保持为高电平; 
    当VCCIO2供电是3.3V,则FLASH_VOL_SEL管脚必须保持为低电平; 
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 
    pmuio2_vsel: 3.3V 
    vccio7_vsel: 3.3V 
    vccio6_vsel: 1.8V 
    vccio5_vsel: 3.3V 
    vccio4_vsel: 3.3V 
    vccio3_vsel: 3.3V 
    vccio2_vsel: 3.3V 
    vccio1_vsel: 3.3V 
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 

root@rk3566-buildroot:/dev# 
root@rk3566-buildroot:/dev# 
nvert ! video/x-raw,format=NV12,width=640,height=521 !  waylandsinko10 ! videoco 
Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Internal data stream error.
Additional debug info:
../libs/gst/base/gstbasesrc.c(3132): gst_base_src_loop (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
streaming stopped, reason not-negotiated (-4)
Execution ended after 0:00:00.002255751
Setting pipeline to NULL ...
Freeing pipeline ...
root@rk3566-buildroot:/dev# 
nvert ! video/x-raw,format=NV12,width=640,height=512 !  waylandsinko10 ! videocon
Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
Redistribute latency...
    /bin/list-iodomain.sh version: V1.0.1 
    Get CHIP ID: rk356x 
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 
    XXXXXXXXXX      PLEASE CHECK IO-DOMAIN !!!!!!!!!!!!!!! 
    XXXXXXXXXX        请务必检查IO电源域配置  !!!!!!!!!!!!!!! 
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 
    Get IO DOMAIN VALUE: 
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 
    注意事项：PMUIO1/PMUIO2 固定不可配 
    VCCIO2电平由硬件FLASH_VOL_SEL决定: 
    当VCCIo2供电是1.8V,则FLASH_VOL_SEL管脚必须保持为高电平; 
    当VCCIO2供电是3.3V,则FLASH_VOL_SEL管脚必须保持为低电平; 
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 
    pmuio2_vsel: 3.3V 
    vccio7_vsel: 3.3V 
    vccio6_vsel: 1.8V 
    vccio5_vsel: 3.3V 
    vccio4_vsel: 3.3V 
    vccio3_vsel: 3.3V 
    vccio2_vsel: 3.3V 
    vccio1_vsel: 3.3V 
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 
^Chandling interrupt.
Interrupt: Stopping pipeline ...
Execution ended after 0:01:58.220288462
[ 2106.073434] uvcvideo: Failed to resubmit video URB (-1).
Setting pipeline to NULL ...
Freeing pipeline ...
root@rk3566-buildroot:/dev#