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    <div class="moz-cite-prefix">Hi,<br>
      Thanks for your reply<br>
      In datasheet you linked are general information only.<br>
      I found it earlier but I think it's more advertisement than
      documentation.<br>
      <br>
      I used AES3500 driver instead of AES4000 but image is still pale.<br>
      DATA_BUFLEN is set correctly. When I changed it to value for
      aes3500, I got an error:<br>
      sync:error [fp_dev_img_capture] unrecognised return code -5<br>
      image capture failed, code -22<br>
      <br>
      FRAME_WIDTH is good too becouse fingerprint shape isn't broken.<br>
      <br>
      Earlier I got images clearly black, but now images are pale.<br>
      I think it could be a problem with voltage or something related.<br>
      Have you any idea which init_reqs could I manipulate to improve
      quality?<br>
          Piotr Jarosz<br>
      <br>
      On 12/01/13 09:33, Juvenn Woo wrote:<br>
    </div>
    <blockquote
cite="mid:CACnkVQW+J920d2qa7mTVcHBg4cij9kNAyjHXfnUTZViQk9icWQ@mail.gmail.com"
      type="cite">
      <div dir="ltr">Hi Piotr,
        <div><br>
        </div>
        <div>The dimension params (DATA_BUFLEN or so) seems not right
          from your image. Please have a look at aes3500.c and aes4000.c
          from latest git repo:<br>
          <div><br>
          </div>
          <div><a moz-do-not-send="true"
              href="http://cgit.freedesktop.org/libfprint/libfprint">http://cgit.freedesktop.org/libfprint/libfprint</a><br>
          </div>
          <div><br>
          </div>
          <div>Also, I've found the datasheet if you don't have already,
            which looks a lot like aes3500's: </div>
          <div><br>
          </div>
          <div><a moz-do-not-send="true"
              href="http://www.digchip.com/datasheets/parts/datasheet/566/AES3400.php">http://www.digchip.com/datasheets/parts/datasheet/566/AES3400.php</a></div>
          <div><br>
          </div>
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      <div class="gmail_extra"><br clear="all">
        <div>
          <div dir="ltr">--<br>
            jv ♫<br>
          </div>
        </div>
        <br>
        <br>
        <div class="gmail_quote">On Sun, Dec 1, 2013 at 7:14 AM, pietrek
          -- <span dir="ltr"><<a moz-do-not-send="true"
              href="mailto:pietrek.j@gmail.com" target="_blank">pietrek.j@gmail.com</a>></span>
          wrote:<br>
          <blockquote class="gmail_quote" style="margin:0 0 0
            .8ex;border-left:1px #ccc solid;padding-left:1ex">
            Hi,<br>
            I'm trying to add aes3400 support, but I get pale
            image(example in attachment) and enroll fails.<br>
            Have you any idea which parameters should I scale to improve
            image quality?<br>
                Piotr Jarosz<br>
            <br>
            <br>
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            <br>
          </blockquote>
        </div>
        <br>
      </div>
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