usb_calc_bus_time man page on Scientific

usb_calc_bus_time man page on Scientific

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USB_CALC_BUS_TIME(9)	     Host Controller APIs	  USB_CALC_BUS_TIME(9)

NAME
       usb_calc_bus_time - approximate periodic transaction time in
       nanoseconds

SYNOPSIS
       long usb_calc_bus_time(int speed, int is_input, int isoc,
			      int bytecount);

ARGUMENTS
       speed
	   from dev->speed; USB_SPEED_{LOW,FULL,HIGH}

       is_input
	   true iff the transaction sends data to the host

       isoc
	   true for isochronous transactions, false for interrupt ones

       bytecount
	   how many bytes in the transaction.

DESCRIPTION
       Returns approximate bus time in nanoseconds for a periodic transaction.
       See USB 2.0 spec section 5.11.3; only periodic transfers need to be
       scheduled in software, this function is only used for such scheduling.

COPYRIGHT
Kernel Hackers Manual 2.6.	 November 2013		  USB_CALC_BUS_TIME(9)

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