Messages in this thread Patch in this message | | | From | Rob Emanuele <> | Subject | [PATCH] usb gadget, serial: Add a serial number field to the usb descriptor. | Date | Fri, 25 Jun 2010 15:45:14 -0700 |
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This way it can support the iSerialNumber parameter.
Signed-off-by: Rob Emanuele <rob@emanuele.us> --- drivers/usb/gadget/serial.c | 15 +++++++++++++-- 1 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/gadget/serial.c b/drivers/usb/gadget/serial.c index f46a609..7f64524 100644 --- a/drivers/usb/gadget/serial.c +++ b/drivers/usb/gadget/serial.c @@ -63,13 +63,16 @@ #define STRING_MANUFACTURER_IDX 0 #define STRING_PRODUCT_IDX 1 -#define STRING_DESCRIPTION_IDX 2 +#define STRING_SERIAL_IDX 2 +#define STRING_DESCRIPTION_IDX 3 static char manufacturer[50]; +static char serialnum[25]; static struct usb_string strings_dev[] = { [STRING_MANUFACTURER_IDX].s = manufacturer, [STRING_PRODUCT_IDX].s = GS_VERSION_NAME, + [STRING_SERIAL_IDX].s = serialnum, [STRING_DESCRIPTION_IDX].s = NULL /* updated; f(use_acm) */, { } /* end of list */ }; @@ -175,7 +178,7 @@ static int __init gs_bind(struct usb_composite_dev *cdev) * contents can be overridden by the composite_dev glue. */ - /* device description: manufacturer, product */ + /* device description: manufacturer, product, serialnum */ snprintf(manufacturer, sizeof manufacturer, "%s %s with %s", init_utsname()->sysname, init_utsname()->release, gadget->name); @@ -193,6 +196,14 @@ static int __init gs_bind(struct usb_composite_dev *cdev) device_desc.iProduct = status; + snprintf(serialnum, sizeof serialnum, "non-unique"); + status = usb_string_id(cdev); + if (status < 0) + goto fail; + strings_dev[STRING_SERIAL_IDX].id = status; + + device_desc.iSerialNumber = status; + /* config description */ status = usb_string_id(cdev); if (status < 0) -- 1.7.0.4
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