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| author |   Mathias Nyman <mathias.nyman@linux.intel.com> | 2016-02-12 16:40:13 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-02-14 17:03:23 -0800 |
| commit | b37d83a6a41499d582b8faedff1913ec75d9e70b (patch) | |
| tree | d41550d8ace906159e0af51465f222e1be6afe7f /include/linux/usb.h | |
| parent | usb: Add USB3.1 SuperSpeedPlus Isoc Endpoint Companion descriptor (diff) | |
| download | linux-dev-b37d83a6a41499d582b8faedff1913ec75d9e70b.tar.xz linux-dev-b37d83a6a41499d582b8faedff1913ec75d9e70b.zip | |
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 <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/usb.h')
| -rw-r--r-- | include/linux/usb.h | 2 |
1 files changed, 2 insertions, 0 deletions
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 */ |