[openwrt/openwrt] packages: libusb: add package 'fxload' (from libusb examples)

[LEDE Commits]

dangole pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/1c785d2567639dea98df7fc13cbc75f64847cd04

commit 1c785d2567639dea98df7fc13cbc75f64847cd04
Author: Daniel Golle <daniel at makrotopia.org>
AuthorDate: Wed Sep 14 20:16:50 2022 +0100

    packages: libusb: add package 'fxload' (from libusb examples)
    
    The 'fxload' tool contained in the examples provided with libusb is
    actually useful and turns out to be the only way to load firmware into
    some rather ancient EZ-USB microcontrollers made by Cypress (formerly
    Anchor Chips).
    The original 'fxload' tool from hotplug-linux has been abandonned long
    ago and requires usbfs to be mounted in /proc/bus/usb/ (like it was in
    Linux 2.4...).
    Hence the best option is to package the modern 'fxload' from the libusb
    examples which (unsurprisingly) uses libusb and works on modern
    systems.
    
    Signed-off-by: Daniel Golle <daniel at makrotopia.org>
---
 package/libs/libusb/Makefile | 26 ++++++++++++++++++++++++--
 1 file changed, 24 insertions(+), 2 deletions(-)

diff --git a/package/libs/libusb/Makefile b/package/libs/libusb/Makefile
index 5d89568937..65c624409d 100644
--- a/package/libs/libusb/Makefile
+++ b/package/libs/libusb/Makefile
@@ -41,10 +41,26 @@ define Package/libusb-1.0/description
   many different operating systems.
 endef
 
+define Package/fxload
+  SECTION:=utils
+  CATEGORY:=Utilities
+  TITLE:=fxload firmware loader
+  URL:=http://linux-hotplug.sourceforge.net
+  DEPENDS:=+libusb-1.0
+endef
+
+define Package/fxload/description
+This program is conveniently able to download firmware into FX, FX2,
+and FX2LP EZ-USB devices, as well as the original AnchorChips EZ-USB.
+It is intended to be invoked by hotplug scripts when the unprogrammed
+device appears on the bus.
+endef
+
 TARGET_CFLAGS += $(FPIC)
 CONFIGURE_ARGS += \
-	--disable-udev \
-	--disable-log
+	--enable-examples-build \
+	--disable-log \
+	--disable-udev
 
 define Build/InstallDev
 	$(INSTALL_DIR) $(1)/usr/include/libusb-1.0
@@ -60,4 +76,10 @@ define Package/libusb-1.0/install
 	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libusb-1.0.so* $(1)/usr/lib/
 endef
 
+define Package/fxload/install
+	$(INSTALL_DIR) $(1)/usr/sbin
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/examples/.libs/fxload $(1)/usr/sbin
+endef
+
 $(eval $(call BuildPackage,libusb-1.0))
+$(eval $(call BuildPackage,fxload))