1STRUCT USB_HOST_ENDP(9) Host-Side Data Types and Macro STRUCT USB_HOST_ENDP(9)
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NAME

6       struct_usb_host_endpoint - host-side endpoint descriptor and queue
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SYNOPSIS

9       struct usb_host_endpoint {
10         struct usb_endpoint_descriptor desc;
11         struct usb_ss_ep_comp_descriptor ss_ep_comp;
12         struct usb_ssp_isoc_ep_comp_descriptor ssp_isoc_ep_comp;
13         struct list_head urb_list;
14         void * hcpriv;
15         struct ep_device * ep_dev;
16         unsigned char * extra;
17         int extralen;
18         int enabled;
19         int streams;
20       };
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MEMBERS

23       desc
24           descriptor for this endpoint, wMaxPacketSize in native byteorder
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26       ss_ep_comp
27           SuperSpeed companion descriptor for this endpoint
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29       ssp_isoc_ep_comp
30           SuperSpeedPlus isoc companion descriptor for this endpoint
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32       urb_list
33           urbs queued to this endpoint; maintained by usbcore
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35       hcpriv
36           for use by HCD; typically holds hardware dma queue head (QH) with
37           one or more transfer descriptors (TDs) per urb
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39       ep_dev
40           ep_device for sysfs info
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42       extra
43           descriptors following this endpoint in the configuration
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45       extralen
46           how many bytes of “extra” are valid
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48       enabled
49           URBs may be submitted to this endpoint
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51       streams
52           number of USB-3 streams allocated on the endpoint
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DESCRIPTION

55       USB requests are always queued to a given endpoint, identified by a
56       descriptor within an active interface in a given USB configuration.
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59Kernel Hackers Manual 3.10         June 2019           STRUCT USB_HOST_ENDP(9)
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