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-rw-r--r--drivers/usb/gadget/g_dnl.c20
-rw-r--r--include/g_dnl.h1
2 files changed, 21 insertions, 0 deletions
diff --git a/drivers/usb/gadget/g_dnl.c b/drivers/usb/gadget/g_dnl.c
index 43f413a..8dc3d9f 100644
--- a/drivers/usb/gadget/g_dnl.c
+++ b/drivers/usb/gadget/g_dnl.c
@@ -33,6 +33,9 @@
#define STRING_PRODUCT 2
/* Index of String Descriptor describing this configuration */
#define STRING_USBDOWN 2
+/* Index of String serial */
+#define STRING_SERIAL 3
+#define MAX_STRING_SERIAL 32
/* Number of supported configurations */
#define CONFIGURATION_NUMBER 1
@@ -40,8 +43,16 @@
static const char shortname[] = "usb_dnl_";
static const char product[] = "USB download gadget";
+static char g_dnl_serial[MAX_STRING_SERIAL];
static const char manufacturer[] = CONFIG_G_DNL_MANUFACTURER;
+void g_dnl_set_serialnumber(char *s)
+{
+ memset(g_dnl_serial, 0, MAX_STRING_SERIAL);
+ if (strlen(s) < MAX_STRING_SERIAL)
+ strncpy(g_dnl_serial, s, strlen(s));
+}
+
static struct usb_device_descriptor device_desc = {
.bLength = sizeof device_desc,
.bDescriptorType = USB_DT_DEVICE,
@@ -53,6 +64,7 @@ static struct usb_device_descriptor device_desc = {
.idVendor = __constant_cpu_to_le16(CONFIG_G_DNL_VENDOR_NUM),
.idProduct = __constant_cpu_to_le16(CONFIG_G_DNL_PRODUCT_NUM),
.iProduct = STRING_PRODUCT,
+ .iSerialNumber = STRING_SERIAL,
.bNumConfigurations = 1,
};
@@ -63,6 +75,7 @@ static struct usb_device_descriptor device_desc = {
static struct usb_string g_dnl_string_defs[] = {
{.s = manufacturer},
{.s = product},
+ {.s = g_dnl_serial},
{ } /* end of list */
};
@@ -156,6 +169,13 @@ static int g_dnl_bind(struct usb_composite_dev *cdev)
g_dnl_string_defs[1].id = id;
device_desc.iProduct = id;
+ id = usb_string_id(cdev);
+ if (id < 0)
+ return id;
+
+ g_dnl_string_defs[2].id = id;
+ device_desc.iSerialNumber = id;
+
g_dnl_bind_fixup(&device_desc, cdev->driver->name);
ret = g_dnl_config_register(cdev);
if (ret)
diff --git a/include/g_dnl.h b/include/g_dnl.h
index de669fb..8f813c2 100644
--- a/include/g_dnl.h
+++ b/include/g_dnl.h
@@ -13,5 +13,6 @@
int g_dnl_bind_fixup(struct usb_device_descriptor *, const char *);
int g_dnl_register(const char *s);
void g_dnl_unregister(void);
+void g_dnl_set_serialnumber(char *);
#endif /* __G_DOWNLOAD_H_ */