usb dongle support for rpi4

PKGBUILD

@@ -2,7 +2,7 @@
 # Author: Maxim Devaev <mdevaev@gmail.com>
 
 
-_variants=(v2-hdmi:rpi4 v2-hdmi:zerow)
+_variants=(v2-hdmi:rpi4 v2-hdmi:zerow v2-hdmiusb:rpi4)
 for _platform in v0-vga v0-hdmi v1-vga v1-hdmi; do
 	for _board in rpi2 rpi3; do
 		_variants+=($_platform:$_board)

configs/kvmd/main/v2-hdmiusb-rpi4.yaml

@@ -0,0 +1,74 @@
+# Don't touch this file otherwise your device may stop working.
+# Use override.yaml to modify required settings.
+# You can find a working configuration in /usr/share/kvmd/configs.default/kvmd.
+
+override: !include override.yaml
+
+logging: !include logging.yaml
+
+kvmd:
+    server:
+        unix: /run/kvmd/kvmd.sock
+
+    auth: !include auth.yaml
+
+    hid:
+        type: otg
+        keyboard:
+            device: /dev/kvmd-hid-keyboard
+        mouse:
+            device: /dev/kvmd-hid-mouse
+
+    atx:
+        type: gpio
+        power_led_pin: 24
+        hdd_led_pin: 22
+        power_switch_pin: 23
+        reset_switch_pin: 27
+
+    msd:
+        type: otg
+
+    streamer:
+        quality: 0
+        resolution: 1920x1080
+        available_resolutions:
+            - 1920x1080
+            - 1600x1200
+            - 1360x768
+            - 1280x1024
+            - 1280x960
+            - 1280x720
+            - 1024x768
+            - 800x600
+            - 720x576
+            - 720x480
+            - 640x480
+        unix: /run/kvmd/ustreamer.sock
+        cmd:
+            - "/usr/bin/ustreamer"
+            - "--device=/dev/kvmd-video"
+            - "--persistent"
+            - "--format=jpeg"
+            - "--resolution={resolution}"
+            - "--desired-fps={desired_fps}"
+            - "--drop-same-frames=30"
+            - "--last-as-blank=0"
+            - "--unix={unix}"
+            - "--unix-rm"
+            - "--unix-mode=0660"
+            - "--exit-on-parent-death"
+            - "--process-name-prefix={process_name_prefix}"
+            - "--notify-parent"
+            - "--no-log-colors"
+
+ipmi:
+    kvmd:
+        unix: /run/kvmd/kvmd.sock
+
+vnc:
+    kvmd:
+        unix: /run/kvmd/kvmd.sock
+
+    streamer:
+        unix: /run/kvmd/ustreamer.sock

configs/os/boot-config/v2-hdmiusb-rpi4.txt

@@ -0,0 +1,8 @@
+# See /boot/overlays/README for all available options
+initramfs initramfs-linux.img followkernel
+
+hdmi_force_hotplug=1
+gpu_mem=16
+enable_uart=1
+dtoverlay=disable-bt
+dtoverlay=dwc2

configs/os/modules-load/v2-hdmiusb.conf

@@ -0,0 +1,2 @@
+dwc2
+libcomposite

configs/os/sudoers/v2-hdmiusb

@@ -0,0 +1,2 @@
+kvmd ALL=(ALL) NOPASSWD: /usr/bin/kvmd-helper-otgmsd-unlock
+kvmd ALL=(ALL) NOPASSWD: /usr/bin/kvmd-helper-otgmsd-remount

configs/os/udev/v2-hdmiusb-rpi4.rules

@@ -0,0 +1,5 @@
+# https://unix.stackexchange.com/questions/66901/how-to-bind-usb-device-under-a-static-name
+# https://wiki.archlinux.org/index.php/Udev#Setting_static_device_names
+KERNEL=="video[0-9]*", SUBSYSTEM=="video4linux", KERNELS=="1-1.4:1.0", GROUP="kvmd", SYMLINK+="kvmd-video"
+KERNEL=="hidg0", GROUP="kvmd", SYMLINK+="kvmd-hid-keyboard"
+KERNEL=="hidg1", GROUP="kvmd", SYMLINK+="kvmd-hid-mouse"