struct_usb_sg_request man page on Scientific

struct_usb_sg_request man page on Scientific

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STRUCT USB_SG_REQUES(9) Host-Side Data Types and Macro STRUCT USB_SG_REQUES(9)

NAME
       struct_usb_sg_request - support for scatter/gather I/O

SYNOPSIS
       struct usb_sg_request {
	 int status;
	 size_t bytes;
       };

MEMBERS
       status
	   zero indicates success, else negative errno

       bytes
	   counts bytes transferred.

DESCRIPTION
       These requests are initialized using usb_sg_init, and then are used as
       request handles passed to usb_sg_wait or usb_sg_cancel. Most members of
       the request object aren´t for driver access.

       The status and bytecount values are valid only after usb_sg_wait
       returns. If the status is zero, then the bytecount matches the total
       from the request.

       After an error completion, drivers may need to clear a halt condition
       on the endpoint.

COPYRIGHT
Kernel Hackers Manual 2.6.	 November 2013	       STRUCT USB_SG_REQUES(9)

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