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USB: serial gadget: descriptor cleanup

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Bugfix some serial gadget descriptors:

 - Stop mangling the low bits (controller type ID) of bcdDevice;
   just use the high bits for a driver revision code.

 - Serial numbers that aren't specific to individual devices
   are useless; stop reporting "0" for this.

 - Since it's not part of a CDC-conformant function, the "bulk only"
   configuration shouldn't be using "CDC Data" as its interface class.
   Switch over to using CLASS_VENDOR_SPEC (different value, 0xff).

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Al Borchers <alborchers@steinerpoint.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
David Brownell 2008-05-07 14:27:37 -07:00 committed by Greg Kroah-Hartman
parent 734d37c654
commit b9370332f4
1 changed files with 2 additions and 4 deletions
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6
drivers/usb/gadget/serial.c
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@ -32,7 +32,7 @@
/* Defines */
#define GS_VERSION_STR "v2.2"
#define GS_VERSION_NUM 0x0202
#define GS_VERSION_NUM 0x2200
#define GS_LONG_NAME "Gadget Serial"
#define GS_SHORT_NAME "g_serial"
@ -218,7 +218,6 @@ static char manufacturer[50];
static struct usb_string gs_strings[] = {
{ GS_MANUFACTURER_STR_ID, manufacturer },
{ GS_PRODUCT_STR_ID, GS_LONG_NAME },
{ GS_SERIAL_STR_ID, "0" },
{ GS_BULK_CONFIG_STR_ID, "Gadget Serial Bulk" },
{ GS_ACM_CONFIG_STR_ID, "Gadget Serial CDC ACM" },
{ GS_CONTROL_STR_ID, "Gadget Serial Control" },
@ -241,7 +240,6 @@ static struct usb_device_descriptor gs_device_desc = {
.idProduct = __constant_cpu_to_le16(GS_PRODUCT_ID),
.iManufacturer = GS_MANUFACTURER_STR_ID,
.iProduct = GS_PRODUCT_STR_ID,
.iSerialNumber = GS_SERIAL_STR_ID,
.bNumConfigurations = GS_NUM_CONFIGS,
};
@ -278,7 +276,7 @@ static const struct usb_interface_descriptor gs_bulk_interface_desc = {
.bDescriptorType = USB_DT_INTERFACE,
.bInterfaceNumber = GS_BULK_INTERFACE_ID,
.bNumEndpoints = 2,
.bInterfaceClass = USB_CLASS_CDC_DATA,
.bInterfaceClass = USB_CLASS_VENDOR_SPEC,
.bInterfaceSubClass = 0,
.bInterfaceProtocol = 0,
.iInterface = GS_DATA_STR_ID,