usb:dfu:g_dnl: Change number of exported configurations at composite gadget

USB composite gadget (g_dnl) supports only one configuration. Due to that
the corresponding field - bConfigurationValue has been changed.

Moreover more descriptive names were chosen for relevant fields.

Windows XP setup:
- Thesyscon USB Descriptor Dumper
- zadig_xp program for WinUSB installation (which is required by dfu-util)
- dfu-util for windows (version 0.6)
- TRATS target connected via USB hub to test Win XP machine.

Tested at: Trats - Exynos4210

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Cc: Marek Vasut <marex@denx.de>
Cc: "Egli, Samuel" <samuel.egli@siemens.com>

diff --git a/drivers/usb/gadget/g_dnl.c b/drivers/usb/gadget/g_dnl.c
index cbfcb2d0748435bf4d9e74e55b46b8c24dba7408..3cb7302b59031355b829cbfc5ee27c216891ba11 100644 (file)
--- a/drivers/usb/gadget/g_dnl.c
+++ b/drivers/usb/gadget/g_dnl.c
@@ -31,8 +31,10 @@
 
 #define STRING_MANUFACTURER 25
 #define STRING_PRODUCT 2
+/* Index of String Descriptor describing this configuration */
 #define STRING_USBDOWN 2
-#define CONFIG_USBDOWNLOADER 2
+/* Number of supported configurations */
+#define CONFIGURATION_NUMBER 1
 
 #define DRIVER_VERSION         "usb_dnl 2.0"
 
@@ -104,7 +106,7 @@ static int g_dnl_config_register(struct usb_composite_dev *cdev)
        static struct usb_configuration config = {
                .label = "usb_dnload",
                .bmAttributes = USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER,
-               .bConfigurationValue =  CONFIG_USBDOWNLOADER,
+               .bConfigurationValue =  CONFIGURATION_NUMBER,
                .iConfiguration =       STRING_USBDOWN,
 
                .bind = g_dnl_do_config,