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products:sbc:vim3:configurations:usb-gadget

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products:sbc:vim3:configurations:usb-gadget [2023/04/16 22:35]
nick 		products:sbc:vim3:configurations:usb-gadget [2025/08/13 03:55] (current)
nick
Line 4: Line 4:
  
 This document mainly introduces USB gadget. You will learn how to configure and enable USB gadget Usage. This document mainly introduces USB gadget. You will learn how to configure and enable USB gadget Usage.
 +
 +<WRAP important >
 +From version **1.7.5**, USB gadget is enabled by default, no need any setup, you can just skip the overlay and service setup.
 +</WRAP>
  
 ===== System Configuration ===== ===== System Configuration =====
Line 12: Line 16:
  
 ==== Configure DTS Overlays ==== ==== Configure DTS Overlays ====
 +
 +<tabbox VIM3/3L with 4.9 kernel>
 +
 +Take VIM3 as an example.
  
 Open ''/boot/env.txt'': Open ''/boot/env.txt'':
Line 25: Line 33:
 ``` ```
  
-==== Enable Service ====+<WRAP important > 
 +If you have issues, please try the extra steps below:
  
 ```shell ```shell
 wget https://dl.khadas.com/.fixup/libcutils.so -O /tmp/libcutils.so wget https://dl.khadas.com/.fixup/libcutils.so -O /tmp/libcutils.so
 sudo cp /tmp/libcutils.so /usr/lib sudo cp /tmp/libcutils.so /usr/lib
 +```
 +</WRAP>
 +
 +<tabbox VIM3/3L with 5.15 kernel>
 +
 +Take VIM3 as an example.
 +
 +Open ''/boot/dtb/amlogic/kvim3.dtb.overlay.env'':
 +
 +```shell
 +sudo vim /boot/dtb/amlogic/kvim3.dtb.overlay.env
 +```
 +
 +Add ''otg-device'' to overlays node to make USB OTG Device enable:
 +
 +```
 +fdt_overlays=otg-device
 +```
 +
 +</tabbox>
 +
 +==== Enable Service ====
 +
 +```shell
 sudo systemctl enable usb-gadget-khadas.service sudo systemctl enable usb-gadget-khadas.service
 ``` ```
Line 48: Line 81:
 ``` ```
  
-Also need to setup the IP address on your PC, e.g. ''192.168.35.1''+Also need to setup the IP address on your PC, e.g. ''192.168.35.110''
  
 Check network connection: Check network connection:
  
 ```shell ```shell
-khadas@Khadas:~$ ping -I usb0 192.168.35.1+khadas@Khadas:~$ ping -I usb0 192.168.35.110
 PING 192.168.35.1 (192.168.35.1) from 192.168.35.100 usb0: 56(84) bytes of data. PING 192.168.35.1 (192.168.35.1) from 192.168.35.100 usb0: 56(84) bytes of data.
-64 bytes from 192.168.35.1: icmp_seq=1 ttl=64 time=0.218 ms +64 bytes from 192.168.35.110: icmp_seq=1 ttl=64 time=0.218 ms 
-64 bytes from 192.168.35.1: icmp_seq=2 ttl=64 time=0.308 ms +64 bytes from 192.168.35.110: icmp_seq=2 ttl=64 time=0.308 ms
-64 bytes from 192.168.35.1: icmp_seq=3 ttl=64 time=0.209 ms +
-64 bytes from 192.168.35.1: icmp_seq=4 ttl=64 time=0.301 ms +
-64 bytes from 192.168.35.1: icmp_seq=5 ttl=64 time=0.295 ms +
-64 bytes from 192.168.35.1: icmp_seq=6 ttl=64 time=0.222 ms +
-64 bytes from 192.168.35.1: icmp_seq=7 ttl=64 time=0.289 ms +
-64 bytes from 192.168.35.1: icmp_seq=8 ttl=64 time=0.297 ms +
-64 bytes from 192.168.35.1: icmp_seq=9 ttl=64 time=0.240 ms +
-64 bytes from 192.168.35.1: icmp_seq=10 ttl=64 time=0.280 ms+
 ``` ```
  
Line 72: Line 97:
  
 ```shell ```shell
 +$ adb kill-server
 $ adb devices $ adb devices
 * daemon not running; starting now at tcp:5037 * daemon not running; starting now at tcp:5037
 * daemon started successfully * daemon started successfully
 List of devices attached List of devices attached
-37304e424e50 device+363233573350    device
  
 $ adb shell $ adb shell
-#  +root@Khadas:/# 
-#  +root@Khadas:/# 
-# ls +root@Khadas:/# 
-bin   dev      etc   lib    mnt  proc  run   srv  tmp    usr zImage +root@Khadas:/# 
-boot  dtb.img  home  media  opt  root  sbin  sys  uInitrd  var +root@Khadas:/# ls 
-#  +bin                dtb.img     lib                proc                srv 
 +bin.usr-is-merged  etc         lib.usr-is-merged  root                sys 
 +boot               home        media              run                 tmp 
 +dev                Image       mnt                sbin                usr 
 +dtb                initrd.img  opt                sbin.usr-is-merged  var
 ``` ```
  
 +===== Troubleshooting =====
 +
 +If adb not work on windows, you can edit ''/usr/local/bin/usb-gadget'' to comment ''ln -s $F_RNDIS $GADGET/configs/c.1/'' and reboot.
 +
 +```diff
 +diff --git a/archives/filesystem/special/VIM-COMMON/usr/local/bin/usb-gadget b/archives/filesystem/special/VIM-COMMON/usr/local/bin/usb-gadget
 +index 520a9b9a..299569f0 100755
 +--- a/usr/local/bin/usb-gadget
 ++++ b/usr/local/bin/usb-gadget
 +@@ -57,7 +57,7 @@ echo "RNDIS" > $F_RNDIS/os_desc/interface.rndis/compatible_id
 + echo "5162001" > $F_RNDIS/os_desc/interface.rndis/sub_compatible_id
 +
 + # Bind function to configuration
 +-ln -s $F_RNDIS $GADGET/configs/c.1/
 ++#ln -s $F_RNDIS $GADGET/configs/c.1/
 + ln -s $GADGET/configs/c.1/ $GADGET/os_desc
 +
 + # Enable the Gadget
 +```
Last modified: 2023/04/16 22:35 by nick

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