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From: Mika Westerberg <mika.westerberg@linux.intel.com>
To: "Sébastien Bourdeauducq" <sb@m-labs.hk>
Cc: Benjamin Tissoires <benjamin.tissoires@gmail.com>,
	linux-input <linux-input@vger.kernel.org>
Subject: Re: "i2c_hid: Could not register for interrupt, irq = -1" on Thinkpad Tablet 10
Date: Tue, 3 Feb 2015 13:25:14 +0200	[thread overview]
Message-ID: <20150203112514.GC18758@lahna.fi.intel.com> (raw)
In-Reply-To: <54D08C7A.6070905@m-labs.hk>

On Tue, Feb 03, 2015 at 04:53:14PM +0800, Sébastien Bourdeauducq wrote:
> On 02/02/2015 11:57 PM, Mika Westerberg wrote:
> >> > Maybe the interrupt should be level sensitive and enabled only after
> >> > certain parts of the device initialization have taken place.
> > The device should respond to reset by asserting an interrupt. You could
> > try so that you only enable the interrupt in i2c_hid_parse() right
> > before i2c_hid_hwreset() is called.
> 
> No luck. There is no more interrupt flood and the device is detected and
> its report descriptor retrieved, but then no events at all are received
> when using the stylus.

If you now check the GPIO status in /sys/kernel/debug/gpio, does it show
'high'?
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      reply	other threads:[~2015-02-03 11:25 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-31 15:01 "i2c_hid: Could not register for interrupt, irq = -1" on Thinkpad Tablet 10 Sebastien Bourdeauducq
2015-01-31 20:39 ` Benjamin Tissoires
2015-02-01  3:27   ` Sebastien Bourdeauducq
2015-02-02 10:00     ` Mika Westerberg
2015-02-02 13:19       ` Sebastien Bourdeauducq
2015-02-02 13:48         ` Mika Westerberg
2015-02-02 15:32           ` Sébastien Bourdeauducq
2015-02-02 15:42             ` Benjamin Tissoires
2015-02-02 15:55               ` Sébastien Bourdeauducq
2015-02-02 15:57             ` Mika Westerberg
2015-02-03  8:53               ` Sébastien Bourdeauducq
2015-02-03 11:25                 ` Mika Westerberg [this message]

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