linux-kernel - Re: [PATCH 2/2] Bluetooth: hidp: remove wrong send

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Date:	Fri, 12 Jul 2013 00:51:12 +0200 (CEST)
From:	Jiri Kosina <jkosina@...e.cz>
To:	Benjamin Tissoires <benjamin.tissoires@...hat.com>
Cc:	Benjamin Tissoires <benjamin.tissoires@...il.com>,
	Marcel Holtmann <marcel@...tmann.org>,
	Gustavo Padovan <gustavo@...ovan.org>,
	David Herrmann <dh.herrmann@...il.com>,
	linux-bluetooth@...r.kernel.org, linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] Bluetooth: hidp: remove wrong send_report at init

On Thu, 11 Jul 2013, Benjamin Tissoires wrote:

> The USB hid implementation does retrieve the reports during the start.
> However, this implementation does not call the HID command GET_REPORT
> (which would fetch the current status of each report), but use the
> DATA command, which is an Output Report (so transmitting data from the
> host to the device).
> The Wiimote controller is already guarded against this problem in the
> protocol, but it is not conformant to the specification to set all the
> reports to 0 on start.
> 
> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@...hat.com>

Acked-by: Jiri Kosina <jkosina@...e.cz>

Gustavo, could you please take it through your tree?

Thanks Benjamin, thanks David.

> ---
>  net/bluetooth/hidp/core.c | 14 --------------
>  1 file changed, 14 deletions(-)
> 
> diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c
> index 9c8b50d..59d132a 100644
> --- a/net/bluetooth/hidp/core.c
> +++ b/net/bluetooth/hidp/core.c
> @@ -703,20 +703,6 @@ static int hidp_parse(struct hid_device *hid)
>  
>  static int hidp_start(struct hid_device *hid)
>  {
> -	struct hidp_session *session = hid->driver_data;
> -	struct hid_report *report;
> -
> -	if (hid->quirks & HID_QUIRK_NO_INIT_REPORTS)
> -		return 0;
> -
> -	list_for_each_entry(report, &hid->report_enum[HID_INPUT_REPORT].
> -			report_list, list)
> -		hidp_send_report(session, report);
> -
> -	list_for_each_entry(report, &hid->report_enum[HID_FEATURE_REPORT].
> -			report_list, list)
> -		hidp_send_report(session, report);
> -
>  	return 0;
>  }
>  
> -- 
> 1.8.3.1
> 

-- 
Jiri Kosina
SUSE Labs
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