Eric Lee / linux-smarc-t335x-v3.2

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Commit 16f16d117c1eb99451e4c73c87546eef05c66790

Authored by Alan Stern
Committed by Greg Kroah-Hartman
1 parent 0a1ef3b5a7
Exists in master and in 4 other branches v3.2_AM335xPSP_04.06.00.11, v3.2_NEWT335xPSP_04.06.00.11, v3.2_SBC_SMARTMEN, v3.2_SMARCT335xPSP_04.06.00.11

[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 <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Showing 1 changed file with 2 additions and 2 deletions Side-by-side Diff

drivers/usb/core/hcd.c
Diff comments   View file @ 16f16d1
... ... @@ -130,7 +130,7 @@
130 130 0x09, /* __u8 bDeviceClass; HUB_CLASSCODE */
131 131 0x00, /* __u8 bDeviceSubClass; */
132 132 0x01, /* __u8 bDeviceProtocol; [ usb 2.0 single TT ]*/
133   - 0x08, /* __u8 bMaxPacketSize0; 8 Bytes */
  133 + 0x40, /* __u8 bMaxPacketSize0; 64 Bytes */
134 134  
135 135 0x00, 0x00, /* __le16 idVendor; */
136 136 0x00, 0x00, /* __le16 idProduct; */
... ... @@ -153,7 +153,7 @@
153 153 0x09, /* __u8 bDeviceClass; HUB_CLASSCODE */
154 154 0x00, /* __u8 bDeviceSubClass; */
155 155 0x00, /* __u8 bDeviceProtocol; [ low/full speeds only ] */
156   - 0x08, /* __u8 bMaxPacketSize0; 8 Bytes */
  156 + 0x40, /* __u8 bMaxPacketSize0; 64 Bytes */
157 157  
158 158 0x00, 0x00, /* __le16 idVendor; */
159 159 0x00, 0x00, /* __le16 idProduct; */