This is a note to let you know that I've just added the patch titled
usb: gadget: f_rndis: fix interface id for OS descriptors
to the 3.16-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
usb-gadget-f_rndis-fix-interface-id-for-os-descriptors.patch
and it can be found in the queue-3.16 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 4546527350c3c508554dff53e9086e9d3de0b97b Mon Sep 17 00:00:00 2001
From: Andrzej Pietrasiewicz <andrzej.p@xxxxxxxxxxx>
Date: Tue, 1 Jul 2014 15:47:47 +0200
Subject: usb: gadget: f_rndis: fix interface id for OS descriptors
From: Andrzej Pietrasiewicz <andrzej.p@xxxxxxxxxxx>
commit 4546527350c3c508554dff53e9086e9d3de0b97b upstream.
f->os_desc_table[0].if_id is zero by default. If the actual id happens
to be different then no Feature Descriptors will be returned to the host
for this interface, so assign if_id as soon as it is known.
Acked-by: Michal Nazarewicz <mina86@xxxxxxxxxx>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@xxxxxxxxxxx>
Signed-off-by: Felipe Balbi <balbi@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/gadget/f_rndis.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/drivers/usb/gadget/f_rndis.c
+++ b/drivers/usb/gadget/f_rndis.c
@@ -727,6 +727,10 @@ rndis_bind(struct usb_configuration *c,
rndis_control_intf.bInterfaceNumber = status;
rndis_union_desc.bMasterInterface0 = status;
+ if (cdev->use_os_string)
+ f->os_desc_table[0].if_id =
+ rndis_iad_descriptor.bFirstInterface;
+
status = usb_interface_id(c, f);
if (status < 0)
goto fail;
Patches currently in stable-queue which might be from andrzej.p@xxxxxxxxxxx are
queue-3.16/usb-gadget-f_rndis-fix-interface-id-for-os-descriptors.patch
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