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usbgadget: add OS descriptors support

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Add OS descriptors support. Configuring OS descriptors allows Microsoft
Windows to bind the right drivers without any additional configuration.

Signed-off-by: Thomas Richard <thomas.richard@bootlin.com>
Link: https://github.com/openwrt/openwrt/pull/19237
Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
This commit is contained in:
Thomas Richard 2025-06-26 11:26:00 +02:00 committed by Chuanhong Guo
parent e2cdcf8e46
commit c5c894f7ff
1 changed files with 9 additions and 0 deletions
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9
package/utils/usbgadget/files/usbgadget.init
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@ -35,6 +35,9 @@ setup_gadget() {
local strings_path="${gadget_path}/strings/0x409"
mkdir "$strings_path"
apply_configs "$strings_path" "$cfg"
local os_desc_path="${gadget_path}/os_desc"
apply_configs "$os_desc_path" "$cfg"
}
setup_configuration() {
@ -54,6 +57,8 @@ setup_configuration() {
local strings_path="${cfg_path}/strings/0x409"
mkdir "$strings_path"
apply_configs "$strings_path" "$cfg"
ln -s "$cfg_path" "${GADGET_FS}/${GADGET_PREFIX}${gadget}/os_desc"
}
setup_function() {
@ -78,6 +83,9 @@ setup_function() {
apply_configs "$fun_path" "$cfg"
local os_desc_path="$(find ${fun_path}/os_desc/* -type d)"
apply_configs "$os_desc_path" "$cfg"
ln -s "$fun_path" "$cfg_path"
}
@ -134,6 +142,7 @@ stop() {
for gadget_path in ${GADGET_FS}/${GADGET_PREFIX}* ; do
[ -d "$gadget_path" ] || continue
echo "" > ${gadget_path}/UDC
find ${gadget_path}/os_desc -maxdepth 1 -type l -exec rm '{}' ';'
find ${gadget_path}/configs -maxdepth 2 -type l -exec rm '{}' ';'
rmdir ${gadget_path}/configs/*/strings/*
rmdir ${gadget_path}/configs/*