usb: gadget: convert source sink and loopback to new function interface
This patch converts the f_sourcesink and f_loopback file to the USB-function
module. Both functions shares a few common utility functions which are
currently implemented in g_zero.c itself. This patch moves the common
code into the sourcesink file and creates one module out of the the two
functions (source sink and loop back).
The g_zero gadget is function specific to source sink and loop back to
set a few options. This Symbol dependency enforces a modul load right
now.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 14625fd..0ef5549 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -500,6 +500,9 @@
tristate
depends on USB_GADGET
+config USB_F_SS_LB
+ tristate
+
choice
tristate "USB Gadget Drivers"
default USB_ETH
@@ -524,6 +527,7 @@
config USB_ZERO
tristate "Gadget Zero (DEVELOPMENT)"
select USB_LIBCOMPOSITE
+ select USB_F_SS_LB
help
Gadget Zero is a two-configuration device. It either sinks and
sources bulk data; or it loops back a configurable number of