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kernel: add option for USB FunctionFS gadget

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Add menuconfig option 'kmod-usb-gadget-fs' for the USB FunctionFS gadget
module

OpenWRT is perfect for USB gadgets that are network-enabled, since it
provides everything needed to easily manage the device. Having support
for the FunctionFS gadget enables the use of any custom USB devices
that does not have a specific module, like Media Transfer Protocol.

Signed-off-by: Dominic Germain <dominic@germain.cc>
Link: https://github.com/openwrt/openwrt/pull/21207
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
(cherry picked from commit 22a69dfa4a9a04833aaac62b9f0a7814571b9e07)
This commit is contained in:
Dominic Germain 2025-12-19 09:46:57 -05:00 committed by Hauke Mehrtens
parent c8b98eab98
commit 8bf13dcb36
1 changed files with 18 additions and 0 deletions
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18
package/kernel/linux/modules/usb.mk
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@ -154,6 +154,24 @@ endef
$(eval $(call KernelPackage,usb-gadget-hid))
define KernelPackage/usb-gadget-fs
TITLE:=USB FunctionFS Gadget Support
KCONFIG:=CONFIG_USB_FUNCTIONFS \
CONFIG_USB_FUNCTIONFS_ETH=n \
CONFIG_USB_FUNCTIONFS_RNDIS=n
FILES:= \
$(LINUX_DIR)/drivers/usb/gadget/legacy/g_ffs.ko \
$(LINUX_DIR)/drivers/usb/gadget/function/usb_f_fs.ko
AUTOLOAD:=$(call AutoLoad,52,usb_f_fs)
$(call AddDepends/usbgadget,+kmod-usb-lib-composite +kmod-dma-buf)
endef
define KernelPackage/usb-gadget-fs/description
Kernel support for USB FunctionFS Gadget.
endef
$(eval $(call KernelPackage,usb-gadget-fs))
define KernelPackage/usb-gadget-ehci-debug
TITLE:=USB EHCI debug port Gadget support
KCONFIG:=\