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From: Marcel Holtmann <marcel@holtmann.org>
To: Jiri Kosina <jkosina@suse.cz>
Cc: Iain Hibbert <plunky@rya-online.net>,
	Bastien Nocera <hadess@hadess.net>,
	linux-bluetooth@vger.kernel.org,
	linux-input <linux-input@vger.kernel.org>
Subject: Re: Apple Bluetooth devices: Battery level?
Date: Tue, 16 Jun 2009 15:37:08 +0200	[thread overview]
Message-ID: <1245159428.15367.22.camel@violet> (raw)
In-Reply-To: <alpine.LNX.2.00.0906161156470.7457@wotan.suse.de>

Hi Jiri,

> > Sorry, I posted a parsed version of the report descriptor previously
> > though I failed to cross post:
> > 
> > Collection page=Generic_Desktop usage=Mouse
> >   Input id=2 size=1 count=1 page=Button usage=Button_1 Variable, logical range 0..1
> >   Input id=2 size=1 count=1 page=Button usage=Button_2 Variable, logical range 0..1
> >   Input id=2 size=1 count=1 page=Button usage=Button_3 Variable, logical range 0..1
> >   Input id=2 size=1 count=1 page=Button usage=Button_4 Variable, logical range 0..1
> >   Input id=2 size=4 count=1 page=0x0000 usage=0x0000 Const Variable, logical range 0..1
> > Collection page=Generic_Desktop usage=Pointer
> >   Input id=2 size=8 count=1 page=Generic_Desktop usage=X Variable Relative, logical range -127..127
> >   Input id=2 size=8 count=1 page=Generic_Desktop usage=Y Variable Relative, logical range -127..127
> >   Input id=2 size=8 count=1 page=Consumer usage=AC_Pan Variable Relative, logical range -127..127
> >   Input id=2 size=8 count=1 page=Generic_Desktop usage=Wheel Variable Relative, logical range -127..127
> > End collection
> >   Input id=2 size=8 count=1 page=0x00ff usage=0x00c0 Variable, logical range -127..127
> > Feature id=71 size=8 count=1 page=Device_Controls usage=Battery_Strength Variable NoPref Volatile, logical range 0..100
> > End collection
> > As you can see, there is a Feature report relating to the Battery 
> > Strength, but I do not know what to do with that. I suppose that it is 
> > to be polled in order to return a percentage value..
> 
> Yes, it has to be polled. But at least the initial value should be 
> retrieved during the very initialization of the device -- both USB and 
> Bluetooth implementations this in usbhid_init_reports()/hidp_start() -- 
> they query INPUT and FEATURE reports during device initialization.

since the descriptors are the same, can we not do this inside the HID
core with a specific quirk setting. And maybe even a timer that polls it
every 30 minutes or so.

Regards

Marcel



  reply	other threads:[~2009-06-16 13:37 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-06-07 14:17 Apple Bluetooth devices: Battery level? Bastien Nocera
     [not found] ` <1244384236.30768.5690.camel-MYKcRh6MmTE/Ra3EetS/fF6hYfS7NtTn@public.gmane.org>
2009-06-07 15:52   ` Marcel Holtmann
2009-06-08 13:33   ` Jiri Kosina
2009-06-09 23:22     ` Bastien Nocera
     [not found]       ` <1244589738.5973.1954.camel-MYKcRh6MmTE/Ra3EetS/fF6hYfS7NtTn@public.gmane.org>
2009-06-10  7:03         ` Marcel Holtmann
2009-06-12 13:25           ` Jiri Kosina
     [not found]             ` <alpine.LNX.2.00.0906121521490.7457-B4tOwbsTzaBolqkO4TVVkw@public.gmane.org>
2009-06-12 13:27               ` [PATCH 2/2] HID: use debugfs for events/reports dumping Jiri Kosina
2009-06-12 13:27             ` [PATCH 1/2] HID: use debugfs for report dumping descriptor Jiri Kosina
2009-06-10  7:14         ` Apple Bluetooth devices: Battery level? Dmitriy Geels
     [not found]           ` <78f5d6bf0906100014r5b7f5c14p4544ef13442c8f0b-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-06-10  7:24             ` Marcel Holtmann
2009-06-10  8:25             ` Bastien Nocera
2009-06-10  8:25         ` Jiri Kosina
     [not found]           ` <alpine.LNX.2.00.0906101023460.7457-B4tOwbsTzaBolqkO4TVVkw@public.gmane.org>
2009-06-10 14:25             ` Bastien Nocera
     [not found]     ` <alpine.LRH.2.00.0906081530330.31685-1ReQVI26iDCaZKY3DrU6dA@public.gmane.org>
2009-06-10 14:06       ` Bastien Nocera
     [not found]         ` <1244642769.2690.51.camel-MYKcRh6MmTE/Ra3EetS/fF6hYfS7NtTn@public.gmane.org>
2009-06-10 18:19           ` Iain Hibbert
2009-06-12 13:31           ` Jiri Kosina
     [not found]             ` <alpine.LNX.2.00.0906121529210.7457-B4tOwbsTzaBolqkO4TVVkw@public.gmane.org>
2009-06-13 13:16               ` Iain Hibbert
     [not found]                 ` <1244898975.477818.1961.nullmailer-miDnOI7kXJ/y0YX2dClxIw@public.gmane.org>
2009-06-16  9:59                   ` Jiri Kosina
2009-06-16 13:37                     ` Marcel Holtmann [this message]
2010-02-12 15:41                     ` Bastien Nocera

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