Add reset API at usb_gadget_driver, and export it for other driver
use (eg, configfs).
Signed-off-by: Peter Chen <peter.chen@xxxxxxxxxxxxx>
---
drivers/usb/gadget/composite.c | 13 ++++++++++++-
include/linux/usb/composite.h | 1 +
2 files changed, 13 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index 6935a82..30ad3d5 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -1775,7 +1775,7 @@ done:
return value;
}
-void composite_disconnect(struct usb_gadget *gadget)
+static void __composite_disconnect(struct usb_gadget *gadget)
{
struct usb_composite_dev *cdev = get_gadget_data(gadget);
unsigned long flags;
@@ -1791,6 +1791,16 @@ void composite_disconnect(struct usb_gadget *gadget)
spin_unlock_irqrestore(&cdev->lock, flags);
}
+void composite_disconnect(struct usb_gadget *gadget)
+{
+ __composite_disconnect(gadget);
+ usb_gadget_disconnect(gadget);
+}
+
+void composite_reset(struct usb_gadget *gadget)
+{
+ __composite_disconnect(gadget);
+}
/*-------------------------------------------------------------------------*/
static ssize_t suspended_show(struct device *dev, struct device_attribute *attr,
@@ -2073,6 +2083,7 @@ static const struct usb_gadget_driver composite_driver_template = {
.unbind = composite_unbind,
.setup = composite_setup,
+ .reset = composite_reset,
.disconnect = composite_disconnect,
.suspend = composite_suspend,
diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h
index c330f5e..5e927d1 100644
--- a/include/linux/usb/composite.h
+++ b/include/linux/usb/composite.h
@@ -501,6 +501,7 @@ extern int usb_string_ids_n(struct usb_composite_dev *c, unsigned n);
extern void composite_disconnect(struct usb_gadget *gadget);
extern int composite_setup(struct usb_gadget *gadget,
const struct usb_ctrlrequest *ctrl);
+extern void composite_reset(struct usb_gadget *gadget);
/*
* Some systems will need runtime overrides for the product identifiers
--
1.7.9.5
--
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