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Commit 16f16d11 authored by Alan Stern's avatar Alan Stern Committed by Greg Kroah-Hartman
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[PATCH] USB: Fix maxpacket length for ep0 on root hubs 



This patch (as591) fixes a rather innocuous bug that has been around for
quite a long time: Virtual root hubs should have a maxpacket length of
64 for endpoint 0.  I didn't realize it was wrong until I started
looking through the endpoint attribute files.

Signed-off-by: default avatarAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 0a1ef3b5

drivers/usb/core/hcd.c

+2 −2
Original line number Diff line number Diff line
@@ -130,7 +130,7 @@ static const u8 usb2_rh_dev_descriptor [18] = { 
	0x09,	    /*  __u8  bDeviceClass; HUB_CLASSCODE */

	0x00,	    /*  __u8  bDeviceSubClass; */

	0x01,       /*  __u8  bDeviceProtocol; [ usb 2.0 single TT ]*/

	0x08,       /*  __u8  bMaxPacketSize0; 8 Bytes */

	0x40,       /*  __u8  bMaxPacketSize0; 64 Bytes */



	0x00, 0x00, /*  __le16 idVendor; */

 	0x00, 0x00, /*  __le16 idProduct; */
@@ -153,7 +153,7 @@ static const u8 usb11_rh_dev_descriptor [18] = { 
	0x09,	    /*  __u8  bDeviceClass; HUB_CLASSCODE */

	0x00,	    /*  __u8  bDeviceSubClass; */

	0x00,       /*  __u8  bDeviceProtocol; [ low/full speeds only ] */

	0x08,       /*  __u8  bMaxPacketSize0; 8 Bytes */

	0x40,       /*  __u8  bMaxPacketSize0; 64 Bytes */



	0x00, 0x00, /*  __le16 idVendor; */

 	0x00, 0x00, /*  __le16 idProduct; */