Wow, thanks, Hans! This should be really useful. I'll take a closer look later today.
On Wed, 17 Jan 2018, 09:57 Hans de Goede, <hdego...@redhat.com> wrote: > Hi Sébastien and Igor, > > I too have an Elan fingerprint reader tucked away in a corner > of my touchpad, my model is: 04f3:0c16 . > > Since I've a contact inside Elantech from my work on touchpads, > I've been communicating with them to get some specifications > and they have provided me with some command reference info, > which I'm allowed to share! : > > https://fedorapeople.org/~jwrdegoede/elan-fingerprint/ > > Unfortunately I have not yet had time to look at supporting > my own reader and it does not look like I will have time for > this soon. Still this should be helpful for you and Igor. > > Note that in calibration mode you are supposed to wait for the > reader to give a certain reply rather then try X times. > > While I still hoping to have time for this soon I did ask > some questions to clarify some things from the docs I got, > the answers to which might be helpful: > > 1) Should the commands be executed in the order listed? > [ELAN] : No, they are not sequence command. > I think "Get image data(0x0009)" is the most important command for > your developing. > > 2) The last 2 steps / commands get reg data / set reg are not exactly > clear, do I need those at all? > [ELAN] : No, they are used for control-register read/write. You don't need > them, it's internal usage. > > 3) How should I get the actual image data when I'm done with the pre-scan > polling? > [ELAN]: You can use "get Image command ( 00 09)" to get Image data. (BTW, > it's the ADC value, not offset value) > Please refer to Pre_Scan_flow.pdf for more information. > > Sébastien, question, are you using yours in swipe mode, like Igor is? > > Regards, > > Hans > > > > On 16-01-18 17:09, Igor Filatov wrote: > > Hi Sebastien, > > > > Thanks for your work. Please try > > > https://github.com/iafilatov/libfprint/commit/fec2a1f3cffca1b1da2f9e379745db344bab2ab5 > > and see if it works for you. Also please tell me if you don't want > > your email mentioned in the header. > > > > 2018-01-16 13:37 GMT+02:00 Sébastien Béchet <sebastien.bec...@osinix.com > >: > >> Hello Igor, > >> > >> On 2018-01-15 17:38, Igor Filatov wrote: > >>> > >>> I don't quite understand what happens though. You've replaced a number > >>> of stages by plain image read commands (CALIBRATE, CAPTURE_START, > >>> DEACTIVATE) which don't seem to do anything but read and discard the > >>> image. Maybe it's fine to not do anything at all at those phases? My > >>> scanner needed to "scan the air" a few times for calibration and such > >>> reads always follow other specific commands (0x4023, 0x4024). Did you > >>> try to just skip the reads instead? > >> > >> > >> It is working when we skip the "scan the air" read command. > Nevertheless the > >> binary driver abuses the read: there must be a good reason? Do you > think we > >> can avoid calibrate_states? > >> > >>> Do 0903 and 0c03 have leds? If they do, how do you turn them on and > off? > >> > >> > >> - No LED for 04f3:0903. Device is integrated with the trackpad. > >> See here : > >> > https://dlcdnimgs.asus.com/websites/global/products/jlHvIhXRAPm1WpRr/V1/images/main/response.png > >> - I don't know for 04f3:0c03. Konata? > >> - BUT i have a good news: it seems 0x0b working. The bugframesup30.diff > bug > >> misled me (this is a _must_ patch) > >> > >>> Also the orientation. IIRC 0903 is square. Do you swipe the finger on > >>> it? Square sensors could cause problems because it's impossible to > >>> know how they are oriented relatively to the user. Stitching of frames > >>> could fail if the assumptions in the driver are wrong. > >> > >> > >> I tried examples / img_capture this morning. The orientation is good for > >> 04f3:0903. > >> Konata, can you try for 04f3:0c03? > >> > >> Igor, do you think i can try to adapt POC to orginal driver? What is the > >> best solution? > >> > >> What do you think about this patch? Last problem for me is > ELAN_FRAME_MARGIN > >> > >> Bye > > > > > > >
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