Hi, Lipengcheng <lpc.li@xxxxxxxxxxxxx> writes: > The value is 4, it can cache four descriptors. When streaming_interval = 1, > it can tolerate 500us. Some busy scenes, it may be more than 500us because > cpu scheduling is not timely. There will have some problems. It is better > set to eight. > > Signed-off-by: Pengcheng Li <lpc.li@xxxxxxxxxxxxx> > --- > drivers/usb/gadget/function/uvc.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/usb/gadget/function/uvc.h b/drivers/usb/gadget/function/uvc.h > index a64e07e..901487e 100644 > --- a/drivers/usb/gadget/function/uvc.h > +++ b/drivers/usb/gadget/function/uvc.h > @@ -90,7 +90,7 @@ extern unsigned int uvc_gadget_trace_param; > * Driver specific constants > */ > > -#define UVC_NUM_REQUESTS 4 > +#define UVC_NUM_REQUESTS 8 if you want to be taken seriously, the bare minimum you can do is to use scripts/get_maintainer.pl to help with a proper Cc list: $ scripts/get_maintainer.pl -f drivers/usb/gadget/function/uvc.h Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> (maintainer:USB WEBCAM GADGET) Felipe Balbi <balbi@xxxxxxxxxx> (maintainer:USB GADGET/PERIPHERAL SUBSYSTEM) Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> (supporter:USB SUBSYSTEM) linux-usb@xxxxxxxxxxxxxxx (open list:USB WEBCAM GADGET) linux-kernel@xxxxxxxxxxxxxxx (open list) Laurent, what do you think about this? -- balbi
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