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Date:      Wed, 29 Jan 2014 11:53:23 +0100
From:      Hans Petter Selasky <hps@bitfrost.no>
To:        "Lundberg, Johannes" <johannes@brilliantservice.co.jp>,  Adrian Chadd <adrian@freebsd.org>
Cc:        =?UTF-8?B?6buE5paH6L6J?= <huanghwh@gmail.com>, freebsd-current <freebsd-current@freebsd.org>, "freebsd-usb@freebsd.org" <freebsd-usb@freebsd.org>, "kwm@freebsd.org" <kwm@freebsd.org>
Subject:   Re: Apple Trackpad driver
Message-ID:  <52E8DDA3.3070301@bitfrost.no>
In-Reply-To: <CAASDrVmqijq51OEH7USLutPSgme7YWhXZZX4tGROLHVPoz2VkA@mail.gmail.com>
References:  <CAB8uncaLEn4CaJv8%2BowESe_zUUK%2Bgem_bXpEjhsOJE69m_fWAg@mail.gmail.com> <CAJ-Vmon4Gk6bqoT%2BJf-bRxE0%2BNJ1NjR0wjum-HjoVFDN-2e=8Q@mail.gmail.com> <CAASDrV=pbDpZCGvEjnD8VS0D_HyC8=L3jQ7rfGszG6=PtxaE3Q@mail.gmail.com> <CAASDrVmqijq51OEH7USLutPSgme7YWhXZZX4tGROLHVPoz2VkA@mail.gmail.com>

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On 01/29/14 09:49, Lundberg, Johannes wrote:
> Hi
>
> I tested the driver on a 2012 Macbook Air 11" and it works great! Good job!
>
> Is there a way to disable click-by-touch? I always preferred clicking with
> the physical button that is built in to the pad.
>

Hi,

I've added an "#if 0" around the 1 finger tap code until further. Maybe 
this feature can be tunable?

I fixed the code style, added some range checks and cleared some buffer 
issues.

When you assign a signed value to an unsigned variable, you should range 
check it, because the sign might cause an overflow when you use it later on.

int8_t x = -1;

uint32_t t = x;

"t" is now "0xffffffffU" and not "255".

Tested the code on my MacBookPro. Hope I didn't break anything. If so, 
send a patch to freebsd-usb.

http://svnweb.freebsd.org/changeset/base/261260

To get the touchpad working with Xorg, I needed to re-compile HALD with 
the attached patch.

kwm: Can you get the attached patch into ports?

Auto-loading of wsp via devd will be done later. Simply need to 
re-generate usb.conf in /etc ...

--HPS


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--- patch-hald_freebsd_hf-usb2.c.orig	2014-01-29 11:50:11.000000000 +0100
+++ patch-hald_freebsd_hf-usb2.c	2014-01-29 11:50:36.000000000 +0100
@@ -61,7 +61,7 @@
 +			if (driver) {
 +				if (!strcmp(driver, "ukbd"))
 +					hf_device_set_input(device, "keyboard", "keys", NULL);
-+				else if (!strcmp(driver, "ums") || !strcmp(driver, "atp")) {
++				else if (!strcmp(driver, "ums") || !strcmp(driver, "atp") || !strcmp(driver, "wsp")) {
 +					hf_device_set_input(device, "mouse", NULL, devname);
 +					hf_runner_run_sync(device, 0, "hald-probe-mouse", NULL);
 +				} else if (!strcmp(driver, "uhid")) {

--------------050509010807080800010305--



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