tree 0c50d36115a9e8634a0bc183c8f7be8d8cb202d9
parent f28c4e1f31802ec746a1b1dc0d7ec97f8de47024
author David Fries <David@Fries.net> 1389846562 -0600
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1391816418 -0800

w1: ds2490 USB setup fixes

Calling usb_reset_configuration after usb_set_interface resets the
interface that was just selected, so call reset first.
Using alternative 3 greatly speeds the one wire search.
alt 0 or 1, 10ms int, 23.16 seconds
alt 2 or 3,  1ms int, 2.99 to 3.05 seconds

Use usb_interrupt_msg not usb_bulk_msg as it is an interrupt pipe
(bulk worked, it was just technically the wrong call).

Signed-off-by: David Fries <David@Fries.net>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>