Hi, Nikolaus, There is no 044E:120C device, but it looks like Alps Touchpad is detected as PS/2 Touchpad. Actually, this Touchpad has two interfaces. One is I2C, the other is PS/2. Default setting is I2C, and if the system does not support I2C, Touchpad works as PS/2. However, both of interface should work properly on Linux. I tested it on Ubuntu +4.10 kernel. If you don't apply my patch, does device work as I2C? (044E:120C appears?) Best Regards, Masaki Ota -----Original Message----- From: Nikolaus Rath [mailto:Nikolaus@xxxxxxxx] Sent: Wednesday, April 05, 2017 2:09 AM To: 太田 真喜 Masaki Ota <masaki.ota@xxxxxxxxxxx> Cc: linux-kernel <linux-kernel@xxxxxxxxxxxxxxx>; linux-input@xxxxxxxxxxxxxxx Subject: Re: [PATCH 1/2] Alps HID I2C T4 device support Hi Masaki, Yes, I think I have a 044E:120C. Is there a way to find out for sure? It's not listed by e.g. lspci. The touchpad is definitely not reacting to anything. evemu-record does not show any events either. I have attached the dmesg output. Best, -Nikolaus On Apr 04 2017, Masaki Ota <masaki.ota@xxxxxxxxxxx> wrote: > Hi, Nikolaus, > > Your Touchpad is 044E:120C, right? > > PATCH 1/2 supports 044E:120C Touchpad device. > I think you can use all features of this Touchpad. > > PATCH 2/2 supports 044E:1215 Touchpad device. > You don't need to care about this. > > If Touchpad does not work completely, there is something an error. > What does dmesg show? > > Best Regards, > Masaki Ota > -----Original Message----- > From: Nikolaus Rath [mailto:Nikolaus@xxxxxxxx] > Sent: Tuesday, April 04, 2017 12:09 PM > To: 太田 真喜 Masaki Ota <masaki.ota@xxxxxxxxxxx>; linux-kernel > <linux-kernel@xxxxxxxxxxxxxxx>; linux-input@xxxxxxxxxxxxxxx > Subject: Re: [PATCH 1/2] Alps HID I2C T4 device support > > Hi Ota, > >> -Support Alps HID I2C T4 Touchpad device. >> -Laptop names that use this Touchpad:HP Zbook Studio, Elitebook Folio >> G1, Elitebook 1030 G1, Elitebook 1040 G3 >> >> Signed-off-by: Masaki Ota <masaki.ota@xxxxxxxxxxx> >> --- >> drivers/hid/hid-alps.c | 500 +++++++++++++++++++++++++++++++++++++++---------- >> drivers/hid/hid-core.c | 3 +- >> drivers/hid/hid-ids.h | 1 + >> 3 files changed, 403 insertions(+), 101 deletions(-) > > I tried your patch on an HP Elitebook, but with rather limited success. Before, I was able to use the touchpad in limited fashion (https://bugs.freedesktop.org/show_bug.cgi?id=100345). With your patch (applied on top of 4.10), the touchpad no longer reacts at all. > > That said, I didn't find a patch 2/2 anywhere.. is there something missing? > > Thanks, > -Nikolaus > > -- > GPG Fingerprint: ED31 791B 2C5C 1613 AF38 8B8A D113 FCAC 3C4E 599F > > »Time flies like an arrow, fruit flies like a Banana.« -- GPG Fingerprint: ED31 791B 2C5C 1613 AF38 8B8A D113 FCAC 3C4E 599F »Time flies like an arrow, fruit flies like a Banana.« ��.n��������+%������w��{.n�����{��)��^n�r������&��z�ޗ�zf���h���~����������_��+v���)ߣ�
