On Wed, Sep 20, 2017 at 10:39 AM, Masaki Ota <masaki.ota@xxxxxxxxxxx> wrote: > Hi, Kai, > > Basically, 0x120A device does not have a trackpoint. > ALPS has released 0x120A device + trackpoint as a sample for DELL, but it does not exist as Mass production. (We changed PTP Dual device Product ID to 0x121F, 0x1220 from 0x120A.) Yes, it's on a Dell laptop ;) Thank you for your clarification. > And we are not going to release 0x120A dual device to the market in the future. Hi Jiri, Based on the comment from Masaki, can we revert commit fcaa4a07d2a4b541e91da7a55d8b3331f96d1865? Thanks! > > Best Regards, > Masaki Ota > -----Original Message----- > From: Kai-Heng Feng [mailto:kai.heng.feng@xxxxxxxxxxxxx] > Sent: Wednesday, September 20, 2017 11:18 AM > To: 太田 真喜 Masaki Ota <masaki.ota@xxxxxxxxxxx>; linux-input@xxxxxxxxxxxxxxx > Subject: MT_CLS_WIN_8_DUAL on non-trackpoint Alps touchpad > > Hi Masaki, > > Support for ALPS 0x120A trackpad got added in patch [1]. > > The problem is, there are two versions of 0x120A, one comes with a trackpoint, one does not. > > Since there's ".export_all_inputs = true" for the device, the trackpoint will be incorrectly reported by hid-multitouch for the non-trackpoint version. > Now userspace tools think the touchpad has a trackpoint, which is incorrect here. > > So is there a way to address the issue? > > [1] https://marc.info/?l=linux-kernel&m=150235885718077&w=2 -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
