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Commit 15d6094b authored by Jack Pham's avatar Jack Pham
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usb: gadget: Add snapshot of USB CDEV function driver 



This change adds USB CDEV function driver which creates USB
character device to provide DUN and NMEA functionality.
This snapshot is taken as of commit 4f7918fd623f ("usb: f_gsi: Use
required RNDIS IAD descriptors with full speed descriptors").

Replace usage of idr_is_empty() with ida_is_empty() in f_cdev.c
as ida no longer uses an internal idr.

Change-Id: Icfdc5c3b8e472d296a393ebb0be36eb5379c3b21
Signed-off-by: default avatarJack Pham <jackp@codeaurora.org>
parent 3008f900

drivers/usb/gadget/Kconfig

+15 −0
Original line number Diff line number Diff line
@@ -230,6 +230,9 @@ config USB_F_ACC 
config USB_F_DIAG

	tristate



config USB_F_CDEV

	tristate



config USB_F_QDSS

	tristate
@@ -546,6 +549,18 @@ config USB_CONFIGFS_F_DIAG 
	  Diag function driver enables support for Qualcomm diagnostics

	  port over USB.



config USB_CONFIGFS_F_CDEV

	bool "USB Serial Character function"

	select USB_F_CDEV

	depends on USB_CONFIGFS

	help

	  The serial character function is a generic function driver that

	  exposes a pair of bulk IN and OUT endpoints which are backed by

	  a character device and mapped to its read/write routines. The

	  function also supports a single interrupt IN endpoint for

	  asynchronous notification to the host. This driver is typically

	  used to support DUN/NMEA functions.



config USB_CONFIGFS_F_QDSS

	bool "USB QDSS function"

	select USB_F_QDSS

drivers/usb/gadget/function/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -60,5 +60,7 @@ usb_f_accessory-y := f_accessory.o 
obj-$(CONFIG_USB_F_ACC)         += usb_f_accessory.o

usb_f_diag-y			:= f_diag.o

obj-$(CONFIG_USB_F_DIAG)	+= usb_f_diag.o

usb_f_cdev-y			:= f_cdev.o

obj-$(CONFIG_USB_F_CDEV)	+= usb_f_cdev.o

usb_f_qdss-y			:= f_qdss.o u_qdss.o

obj-$(CONFIG_USB_F_QDSS)	+= usb_f_qdss.o

drivers/usb/gadget/function/f_cdev.c

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File added.

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