Hi, Actually I'm seeking a way to rotate my touchpad, and found the previous mailing thread: [PATCH synaptics] Add synaptics orientation support Is this feature already implemented elsewhere now? Or is there any plan to add it to synaptics driver?
Thanks, Leon On Fri, Mar 30, 2012 at 6:48 AM, Peter Hutterer <[email protected]> wrote: > On Thu, Mar 29, 2012 at 08:47:33PM +0800, Leon Shaw wrote: >> Thanks for you explanation. So we don't have a way to get the actual >> bezel limit, and the only reliable limit is 0x0000–0x17FF (according >> to "Synaptics PS/2 TouchPad Interfacing Guide"). Is that right? > > yes, that's how I understood it. bit of a bummer, could be worked around in > the code since it's always the same value anyway (afaict). but I only > noticed this a few weeks back when I was debugging something else. > > Cheers, > Peter > > >> On Thu, Mar 29, 2012 at 2:39 PM, Peter Hutterer >> <[email protected]> wrote: >> > On Tue, Mar 27, 2012 at 12:38:01PM +0800, Leon Shaw wrote: >> >> Hi Peter, >> >> >> >> I looked into eventcomm.c and got confused. >> >> >> >> 1. Shouldn't apply_st_scaling be something like: >> >> (value - st_min[axis]) * proto_data->st_to_mt_scale[axis] + >> >> priv->minx_or_y; >> >> instead of >> >> value * proto_data->st_to_mt_scale[axis] + >> >> proto_data->st_to_mt_offset[axis]; >> >> since st_min is normally not 0? >> > >> > yes, you're right, this appears to be broken. Can you submit a patch >> > please? >> > rename the st_to_mt_offset to st_min since we don't seem to need it >> > elsewhere. >> > >> >> 2. My device seems reporting coordinates beyond minimum and maximum >> >> value in priv when I touch the edges. Is there some thing wrong? >> > >> > no, that's a synaptics "feature". the ranges the device reports are the >> > ones seen from a "default" finger, if your finger is larger or smaller, the >> > actual ranges you can trigger on the device are different. bit of a pain, >> > the main problem is that the driver assumes these ranges to be something >> > else and features have piled up on this misunderstanding for years. it'll >> > take a while to get rid of this. >> > >> > Cheers, >> > Peter >> _______________________________________________ [email protected]: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org/mailman/listinfo/xorg-devel
