Hello Marco,
On 26.10.23 14:46, Marco Felsch wrote:
> Windows hosts do require the serial number to be set to any ascii string
> to enumerate correctly. Set the serial number to "empty" to provide a
> sane default which works for both hosts. Users can still override this
> via the gadget.serialnumber variable.
>
> Reported-by: Andrey Zhizhikin <andrey.zhizhikin@xxxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Marco Felsch <m.felsch@xxxxxxxxxxxxxx>
> ---
> drivers/usb/gadget/udc/core.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c
> index b58498680ad1..dc5d1daa14bf 100644
> --- a/drivers/usb/gadget/udc/core.c
> +++ b/drivers/usb/gadget/udc/core.c
> @@ -1204,7 +1204,7 @@ int usb_add_gadget(struct usb_gadget *gadget)
> gadget->productname = xstrdup(barebox_get_model());
> dev_add_param_string(&gadget->dev, "productname", NULL, NULL,
> &gadget->productname, NULL);
> - gadget->serialnumber = xstrdup("");
> + gadget->serialnumber = xstrdup("empty");
Given that we initialize productname to model, it makes sense to initialize
serialnumber to global.serial_number now that we have that generic variable.
If that's unset, you can use a fixed value, I'd prefer "unset" though
instead of "empty".
Cheers,
Ahmad
> dev_add_param_string(&gadget->dev, "serialnumber", NULL, NULL,
> &gadget->serialnumber, NULL);
>
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