[source] kernel: add Digi Edgeport USB serial driver package

[LEDE Commits]

blogic pushed a commit to source.git, branch master:
https://git.lede-project.org/a131b892ea4abc08b7ec75d047f22f1716f74209

commit a131b892ea4abc08b7ec75d047f22f1716f74209
Author: Bjørn Mork <bjorn at mork.no>
AuthorDate: Thu Apr 20 14:40:05 2017 +0200

    kernel: add Digi Edgeport USB serial driver package
    
    Signed-off-by: Bjørn Mork <bjorn at mork.no>
---
 package/kernel/linux/modules/usb.mk | 39 +++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/package/kernel/linux/modules/usb.mk b/package/kernel/linux/modules/usb.mk
index 591ba0a..b0375dc 100644
--- a/package/kernel/linux/modules/usb.mk
+++ b/package/kernel/linux/modules/usb.mk
@@ -503,6 +503,45 @@ endef
 $(eval $(call KernelPackage,usb-serial-ch341))
 
 
+define KernelPackage/usb-serial-edgeport
+  TITLE:=Support for Digi Edgeport devices
+  KCONFIG:=CONFIG_USB_SERIAL_EDGEPORT
+  FILES:=$(LINUX_DIR)/drivers/usb/serial/io_edgeport.ko
+  AUTOLOAD:=$(call AutoProbe,io_edgeport)
+  $(call AddDepends/usb-serial)
+endef
+
+define KernelPackage/usb-serial-edgeport/description
+ Kernel support for Inside Out Networks (Digi)
+	Edgeport/4
+	Rapidport/4
+	Edgeport/4t
+	Edgeport/2
+	Edgeport/4i
+	Edgeport/2i
+	Edgeport/421
+	Edgeport/21
+	Edgeport/8
+	Edgeport/8 Dual
+	Edgeport/2D8
+	Edgeport/4D8
+	Edgeport/8i
+	Edgeport/2 DIN
+	Edgeport/4 DIN
+	Edgeport/16 Dual
+endef
+
+define KernelPackage/usb-serial-edgeport/install
+	$(INSTALL_DIR) $(1)/lib/firmware/edgeport
+	$(INSTALL_DATA) $(LINUX_DIR)/firmware/edgeport/boot.fw $(1)/lib/firmware/edgeport/
+	$(INSTALL_DATA) $(LINUX_DIR)/firmware/edgeport/boot2.fw $(1)/lib/firmware/edgeport/
+	$(INSTALL_DATA) $(LINUX_DIR)/firmware/edgeport/down.fw $(1)/lib/firmware/edgeport/
+	$(INSTALL_DATA) $(LINUX_DIR)/firmware/edgeport/down2.fw $(1)/lib/firmware/edgeport/
+endef
+
+$(eval $(call KernelPackage,usb-serial-edgeport))
+
+
 define KernelPackage/usb-serial-ftdi
   TITLE:=Support for FTDI devices
   KCONFIG:=CONFIG_USB_SERIAL_FTDI_SIO