usb: gadget: g_dnl: add function g_dnl_set_product

Add a function g_dnl_set_product to change the Product string used in USB
enumeration in any command based on download gadget.

If the function is called with NULL pointer, the product string is set to
the default value (product[] = "USB download gadget").

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>

diff --git a/drivers/usb/gadget/g_dnl.c b/drivers/usb/gadget/g_dnl.c
index e9e1600..7a51b53 100644 (file)
--- a/drivers/usb/gadget/g_dnl.c
+++ b/drivers/usb/gadget/g_dnl.c
@@ -89,6 +89,14 @@ static struct usb_gadget_strings *g_dnl_composite_strings[] = {
        NULL,
 };
 
+void g_dnl_set_product(const char *s)
+{
+       if (s)
+               g_dnl_string_defs[1].s = s;
+       else
+               g_dnl_string_defs[1].s = product;
+}
+
 static int g_dnl_unbind(struct usb_composite_dev *cdev)
 {
        struct usb_gadget *gadget = cdev->gadget;

diff --git a/include/g_dnl.h b/include/g_dnl.h
index 6d461c7..836ee60 100644 (file)
--- a/include/g_dnl.h
+++ b/include/g_dnl.h
@@ -38,6 +38,7 @@ int g_dnl_board_usb_cable_connected(void);
 int g_dnl_register(const char *s);
 void g_dnl_unregister(void);
 void g_dnl_set_serialnumber(char *);
+void g_dnl_set_product(const char *s);
 
 bool g_dnl_detach(void);
 void g_dnl_trigger_detach(void);