1. NAME▲

struct_usb_host_endpoint - host-side endpoint descriptor and queue

2. SYNOPSIS ▲



 
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struct usb_host_endpoint {
  struct usb_endpoint_descriptor desc;
  struct usb_ss_ep_comp_descriptor ss_ep_comp;
  struct list_head urb_list;
  void * hcpriv;
  struct ep_device * ep_dev;
  unsigned char * extra;
  int extralen;
  int enabled;
};

3. MEMBERS ▲

desc
    descriptor for this endpoint, wMaxPacketSize in native byteorder

ss_ep_comp
    SuperSpeed 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

ep_dev
    ep_device for sysfs info

extra
    descriptors following this endpoint in the configuration

extralen
    how many bytes of « extra » are valid

enabled
    URBs may be submitted to this endpoint

4. DESCRIPTION ▲

USB requests are always queued to a given endpoint, identified by a descriptor within an active interface in a given USB configuration.

5. COPYRIGHT ▲