From b37d83a6a41499d582b8faedff1913ec75d9e70b Mon Sep 17 00:00:00 2001 From: Mathias Nyman Date: Fri, 12 Feb 2016 16:40:13 +0200 Subject: usb: Parse the new USB 3.1 SuperSpeedPlus Isoc endpoint companion descriptor USB 3.1 devices can return a new SuperSpeedPlus isoc endpoint companion descriptor for a isochronous endpoint that requires more than 48K bytes per Service Interval. The new descriptor immediately follows the old USB 3.0 SuperSpeed Endpoint Companion and will provide a new BytesPerInterval value. It is parsed and stored in struct usb_host_endpoint with the other endpoint related descriptors, and should be used by USB3.1 capable hosts to reserve bus time in the schedule. Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman --- include/linux/usb.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/usb.h b/include/linux/usb.h index dc0ea0de8a81..8fc881af8735 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -50,6 +50,7 @@ struct ep_device; * struct usb_host_endpoint - host-side endpoint descriptor and queue * @desc: descriptor for this endpoint, wMaxPacketSize in native byteorder * @ss_ep_comp: SuperSpeed companion descriptor for this endpoint + * @ssp_isoc_ep_comp: SuperSpeedPlus isoc companion descriptor for this endpoint * @urb_list: urbs queued to this endpoint; maintained by usbcore * @hcpriv: for use by HCD; typically holds hardware dma queue head (QH) * with one or more transfer descriptors (TDs) per urb @@ -65,6 +66,7 @@ struct ep_device; struct usb_host_endpoint { struct usb_endpoint_descriptor desc; struct usb_ss_ep_comp_descriptor ss_ep_comp; + struct usb_ssp_isoc_ep_comp_descriptor ssp_isoc_ep_comp; struct list_head urb_list; void *hcpriv; struct ep_device *ep_dev; /* For sysfs info */ -- cgit v1.2.3-71-gd317