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Date: Sun, 07 Nov 2010 21:50:57 +0100 From: Henrik Rydberg <rydberg@...omail.se> To: Rafi Rubin <rafi@...s.upenn.edu> CC: Dmitry Torokhov <dmitry.torokhov@...il.com>, linux-input@...r.kernel.org, linux-kernel@...r.kernel.org, Chris Bagwell <chris@...bagwell.com>, Chase Douglas <chasedouglas@...il.com>, Takashi Iwai <tiwai@...e.de> Subject: Re: [PATCH] input: Introduce light-weight contact tracking On 11/07/2010 09:44 PM, Rafi Rubin wrote: > On 11/07/2010 03:18 PM, Henrik Rydberg wrote: >> Some kernel drivers demand the use of contact tracking for proper >> filtering and pointer emulation. With one exception, these drivers >> are limited to a maximum of four concurrent contacts. This patch adds >> a simple matcher for up to four contacts, with these notable properties: > > Tracking in the ntrig driver needs to support a minimum of 6 fingers. I have > also seen press releases claiming 10+ eventually. I don't know if those devices > will support tracking in the hardware/firmware. This is the exception I was talking about. The thing is, I can very well see a driver supporting four fingers even if the device claims to support six. After all, getting those four fingers working well will still be a big improvement. Henrik -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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