linux-kernel - Re: [PATCH] usb: udc: add gadget state kobject uevent

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Message-ID: <CA+k=oDwvA3eSy7xL7hyBVgjCm37Mv7iroFndJOC09ZQci0=o0A@mail.gmail.com>
Date:	Thu, 18 Jul 2013 18:54:38 +0800
From:	Rong Wang <wr011235813@...il.com>
To:	balbi@...com
Cc:	Greg KH <gregkh@...uxfoundation.org>,
	Arnd Bergmann <arnd@...db.de>, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org, Rong.Wang@....com
Subject: Re: [PATCH] usb: udc: add gadget state kobject uevent

Hi Felipe,

Here's the patch. If you are OK with it, I'll send it to the list formally.
Thanks.

-------------------------------------------------------------------------------------------------

usb: gadget: udc-core: make udc state attribute name consistent

The name of udc state attribute file under sysfs is
registered as "state", while usb_gadget_set_state
take it as "status" when it's going to update.
Here it is made consistent as "state".

Signed-off-by: Rong Wang <Rong.Wang@....com>

diff --git a/drivers/usb/gadget/udc-core.c b/drivers/usb/gadget/udc-core.c
index ffd8fa5..5514822 100644
--- a/drivers/usb/gadget/udc-core.c
+++ b/drivers/usb/gadget/udc-core.c
@@ -105,7 +105,7 @@ void usb_gadget_set_state(struct usb_gadget *gadget,
                enum usb_device_state state)
 {
        gadget->state = state;
-       sysfs_notify(&gadget->dev.kobj, NULL, "status");
+      sysfs_notify(&gadget->dev.kobj, NULL, "state");
 }
 EXPORT_SYMBOL_GPL(usb_gadget_set_state);

On Thu, Jul 18, 2013 at 6:10 PM, Felipe Balbi <balbi@...com> wrote:
> On Thu, Jul 18, 2013 at 05:28:19PM +0800, Rong Wang wrote:
>> Hi Felipe,
>>
>> Thanks, I'll test the patch.
>>
>> But sysfs_notify(&gadget->dev.kobj, NULL, "status"), status or state ?
>> I notice that DEVICE_ATTR(state, S_IRUGO, usb_gadget_state_show, NULL)
>
> good eyes, please send a patch which I'll queue on this -rc and Cc:
> <stable@...r.kernel.org>.
>
> I'll rewrite my patch on top of the patched -rc later.
>
> --
> balbi
--
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