lkml.org 
[lkml]   [2011]   [Aug]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PATCH v2 7/7] Input: elantech - add v3 hardware support
Date
Hi Seth,

Thank you. You are right.
I think I somehow tested the worng touchpad for this patch.

jj

On Wed, 24 Aug 2011 09:35:20 -0500, Seth Forshee <seth.forshee@canonical.com> wrote:
> On Wed, Aug 24, 2011 at 01:44:46PM +0800, JJ Ding wrote:
> > @@ -403,11 +503,39 @@ static int elantech_packet_check_v2(struct psmouse *psmouse)
> > }
> >
> > /*
> > + * We check the constant bits to determine what packet type we get,
> > + * so packet checking is mandatory for v3 hardware.
> > + */
> > +static int elantech_packet_check_v3(struct psmouse *psmouse)
> > +{
> > + unsigned char *packet = psmouse->packet;
> > +
> > + if ((packet[0] & 0x0c) == 0x04 &&
> > + (packet[3] & 0xcf) == 0x02)
> > + return PACKET_V3_HEAD;
> > +
> > + if ((packet[0] & 0x0c) == 0x0c &&
> > + (packet[3] & 0xce) == 0x0c)
> > + return PACKET_V3_TAIL;
> > +
> > + if (packet[0] == 0xc4 &&
> > + packet[1] == 0xff &&
> > + packet[2] == 0xff &&
> > + packet[3] == 0x02 &&
> > + packet[4] == 0xff &&
> > + packet[5] == 0xff)
> > + return PACKET_DEBOUNCE;
> > +
> > + return PACKET_UNKNOWN;
> > +}
>
> This will never return PACKET_DEBOUNCE, because those packets will have
> already matched the conditions for PACKET_V3_HEAD. That condition needs
> to be moved to the top of the function.
>
> Seth


\
 
 \ /
  Last update: 2011-08-25 03:09    [W:2.156 / U:0.532 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site