Commit 7e34d70a authored Aug 07, 2015 by Tal Shorer Committed by Greg Kroah-Hartman Aug 08, 2015

usb: hcd.h: Fix the values of SetHubDepth and GetPortErrorCount to match USB 3.1 specification

>From the usb 3.1 spec available at http://www.usb.org/developers/docs/


table 10-7 (Hub Class Requests) specifies the values for SetHubDepth and
GetPortErrorCount as:

Request			bmRequestType	bRequest		wValue		wIndex	wLength	Data
SetHubDepth		00100000B	SET_HUB_DEPTH		Hub Depth	Zero	Zero	None
GetPortErrorCount	10100011B	GET_PORT_ERR_COUNT	Zero		Port	Two	Number of Link Errors on this port

Fix these two values to match the spec.

Signed-off-by: Tal Shorer <tal.shorer@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 166b8639

include/linux/usb/hcd.h

+3 −3

Original line number	Diff line number	Diff line
		@@ -564,9 +564,9 @@ extern void usb_ep0_reinit(struct usb_device *);

		/-------------------------------------------------------------------------/

		/* class requests from USB 3.0 hub spec, table 10-5 */
		#define SetHubDepth (0x3000 \| HUB_SET_DEPTH)
		#define GetPortErrorCount (0x8000 \| HUB_GET_PORT_ERR_COUNT)
		/* class requests from USB 3.1 hub spec, table 10-7 */
		#define SetHubDepth (0x2000 \| HUB_SET_DEPTH)
		#define GetPortErrorCount (0xa300 \| HUB_GET_PORT_ERR_COUNT)

		/*
		* Generic bandwidth allocation constants/support