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From: "Arce, Abraham" <x0066660@ti.com>
To: "linux-input@vger.kernel.org" <linux-input@vger.kernel.org>
Subject: Dual touchscreen implementation
Date: Tue, 10 Aug 2010 18:16:27 -0500	[thread overview]
Message-ID: <27F9C60D11D683428E133F85D2BB4A53043F6195B1@dlee03.ent.ti.com> (raw)

Hi,

I am working in a board with dual display/touchscreen. I have searched within drivers/input/touchscreen for some examples on how to implement the functionality to configure driver and behave as a single touchscreen if 2 sensors are present, no specific example found

My idea is to create an attribute "virtualized" to enable/disable virtualization in the second touchscreen

+ static DEVICE_ATTR(virtualized, S_IRUGO | S_IWUSR,
+ 		   syn_show_attr_virtualized, syn_store_attr_virtualized);


In the function which reports the values to input subsystem we can then decide to make the second one as an extension of the first touchscreen if

* virtualized is set to 1
* and touchscreen sensor is the second one


 + if (ts->virtualized && dev_name(&sensor->dev == '2')
 +	data->x = ts->touch_caps.max_x + d->x;
 [..]
 + input_report_abs(idev, ABS_x, data->x);


I'd appreciate any comments on this approach...

Best Regards
Abraham


             reply	other threads:[~2010-08-10 23:16 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-08-10 23:16 Arce, Abraham [this message]
2010-08-13  7:50 ` Dual touchscreen implementation Dmitry Torokhov
2010-08-13  8:40   ` Arce, Abraham
2010-08-17 14:06     ` Murphy, Dan
2010-08-20  5:01       ` Dmitry Torokhov

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