From: Alan Stern Date: Mon, 24 Oct 2005 19:41:19 +0000 (-0400) Subject: [PATCH] USB: Fix maxpacket length for ep0 on root hubs X-Git-Tag: v3.12-rc1~40274^2~63^2~5^2~7 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=16f16d117c1eb99451e4c73c87546eef05c66790;p=kernel%2Fkernel-generic.git [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: Alan Stern Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 61ef994..6c7ca5b 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -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; */