On Tue, 12 Feb 2019, Peter Chen wrote: > The calculation of packet number within microframe is different between > high-speed and super-speed endpoint, we add support for super-speed > in this patch. > > Cc: Pawel Laszczak <[email protected]> > Signed-off-by: Peter Chen <[email protected]> > --- > drivers/usb/misc/usbtest.c | 28 ++++++++++++++++++++++++---- > 1 file changed, 24 insertions(+), 4 deletions(-) > > diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c > index c7f82310e73e..98ada1a3425c 100644 > --- a/drivers/usb/misc/usbtest.c > +++ b/drivers/usb/misc/usbtest.c > @@ -347,6 +347,14 @@ static unsigned get_maxpacket(struct usb_device *udev, > int pipe) > return le16_to_cpup(&ep->desc.wMaxPacketSize); > } > > +static int ss_isoc_get_packet_num(struct usb_device *udev, int pipe) > +{ > + struct usb_host_endpoint *ep = usb_pipe_endpoint(udev, pipe); > + > + return USB_SS_MULT(ep->ss_ep_comp.bmAttributes) > + * (1 + ep->ss_ep_comp.bMaxBurst); > +}
Could this calculation be useful for other drivers? Should it go into ch9.h or some other similar place? Alan Stern
