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EndpointDescriptor Struct Reference
Host Controller Endpoint Descriptor. More...
#include <UsbStructures.h>
Data Fields | |
| uint32_t | control |
| This is the USB address of the function containing the endpoint that this ED controls In the docs this is called 'FunctionAddress' but it is for our use for when the controller passes the object back to us. | |
Detailed Description
Host Controller Endpoint Descriptor.
An Endpoint Descriptor (ED) is a 16-byte, memory resident structure that must be aligned to a 16-byte boundary. The Host Controller traverses lists of EDs and if there are TDs linked to an ED, the Host Controller performs the indicated transfer.
Definition at line 294 of file UsbStructures.h.
Field Documentation
| uint32_t control |
This is the USB address of the function containing the endpoint that this ED controls In the docs this is called 'FunctionAddress' but it is for our use for when the controller passes the object back to us.
unsigned functionAddress:7;
This is the USB address of the endpoint within the function. unsigned endpointNumber:4;
unsigned D:2; unsigned S:1; unsigned K:1; unsigned F:1;
This field indicates the maximum number of bytes that can be sent to or received from the endpoint in a single data packet unsigned maximumPacketSize:11;
unsigned padding:5;
Definition at line 315 of file UsbStructures.h.
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