suse man page for usb_calc_bus_time

Query: usb_calc_bus_time

OS: suse

Section: 9

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

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. July 2010 USB_CALC_BUS_TIME(9)
Related Man Pages
struct_spi_message(9) - suse
asadmin-unfreeze-transaction-service(1as) - sunos
rollback-transaction(1as) - sunos
unfreeze-transaction-service(1as) - sunos
ehci(4) - freebsd
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