Hi, Juanito, In my information, ALPS Touchpad is used on Thinkpad E series and L series. I don't know the device that is ALPS Touchpad + other vendor TrackStick. But Lenovo might use ALPS Touchpad on such a combination. And I have found that the V7 protocol device has a special ID for Lenovo. ALPS assigns the value that is the model type to 0xC399 address. Could you check 0xC399 address value such like a below code? reg_val = alps_command_mode_read_reg(psmouse, 0xC399); If the value is 0x1 or 0x2 or 0x6 or 0x10 or 0xF, it has a Stick buttons. Best Regards, Masaki Ota -----Original Message----- From: Juanito [mailto:juam+kernel@xxxxxxxxxx] Sent: Sunday, September 10, 2017 3:22 AM To: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>; Pali Rohár <pali.rohar@xxxxxxxxx> Cc: 太田 真喜 Masaki Ota <masaki.ota@xxxxxxxxxxx>; linux-input@xxxxxxxxxxxxxxx; Paul Donohue <linux-kernel@xxxxxxxxxx> Subject: Re: ALPS touchpad ot correctly recognized: GlidePoint vs DualPoint On 09/09/2017 08:12 PM, Dmitry Torokhov wrote: > On Sat, Sep 09, 2017 at 10:36:06AM +0200, Pali Rohár wrote: >> On Saturday 09 September 2017 10:12:42 Juanito wrote: >>> Hello, >>> >>> On 09/08/2017 08:48 AM, Pali Rohár wrote: >>>> On Friday 08 September 2017 07:00:34 Juanito wrote: >>>>>> ThinkPad with ALPS? Should not be it Synaptic? Maybe >>>>>> miss-detection? >>>>> >>>>> Sorry, I forgot to mention this. The ThinkPad came with a clickpad >>>>> I **really** disliked, so I bought this on the Internet. >>>> >>>> So, here is a problem. ThinkPads works with Synaptic touchpads, not >>>> with ALPS. >>> >>> There definitely seems to be a problem here :) >>> >>> Do you mean that the alps code might not be detecting the trackpoint >>> because probably the red thingie works with synaptics? >>> >>> So could this be the situation: >>> ALPS driver: Hey touchpad! Do you have a trackstick? >>> ALPS touchpad: No, I don't. >>> AD: Ok! (and thinks 'I am going to have to ignore all trackstick >>> packets that might arrive') >>> >>> So the driver understands that there can't possibly be any buttons >>> because there is no trackstick? >> >> IIRC ALPS touchpad hardware itself does not work with non-ALPS >> trackpoint. >> >> Masaki, any comments? >> >>>>> If by trackstick you mean the red thingie, it is **not** working. >>>> >>>> Ok. And it is working with your patch? >>> >>> No, it isn't :( >> >> I expected... You just created franken-hardware. >> >> Looks like with your hack patch it is possible to make buttons >> working, but I suspect that trackstick would. >> >> Maybe Masaki can provide more information about this fact if we can >> do anything. >> >> Dmitry, what you as maintainer going to do with this problem? > > It really depends on Ota-san response. If ALPS needs a special version > of firmware flashed for proper trackstick identification, then I guess > Juanito will have to carry a local patch. I do not think we want to > complicate the driver any further for supporting such after-market > modification. > If this only happens in this after-market (or franken-hardware... hahaha), I'd totally understand if you didn't want to patch it upstream, although it would be nice for me :) > Does booting with psmouse.proto=imps makes trackstick work? > I am afraid I can't test it now as I don't have access to the laptop. I won't be able to test until two weeks. Will definitely do as soon as I can. > Thanks. > Thank **you** (Dmitry and everybody esle) for taking the time to look at this. Juanito ��.n��������+%������w��{.n�����{��)��^n�r������&��z�ޗ�zf���h���~����������_��+v���)ߣ�
