<html>
  <head>
    <meta content="text/html; charset=iso-8859-2"
      http-equiv="Content-Type">
  </head>
  <body bgcolor="#FFFFFF" text="#000000">
    <div class="moz-cite-prefix">libusb0 jsem jsem měl nahrané, ale asi
      špatné verze.<br>
      Teď jsem našel správnou verzi, libusb0 se nahrálo korektně.<br>
      <br>
      Čtečka pak zmizela ve správci zařízení z Portů (byl tam nějaký
      COM) <br>
      a objevil se samostatný symbol pro usb jako libusb-32 devices s
      podsložkou<br>
      CP2102 USB to UART Bridge Controller<br>
      <br>
      Když nyní dám usb.core.show_devices()<br>
      vrátí mi: <br>
      DEVICE ID 10c4:ea60 on Bus 000 Address 001, Specified at interface<br>
      <br>
      Takže idVendor=0x10C48 měl být 0x10C4<br>
      Po opravě se vše rozjelo. Zdá se, že jsem na dobré cestě.<br>
      <br>
      Děkuji za pomoc.<br>
      <br>
      Vláďa<br>
      <br>
      Dne 17.5.2015 v 2:43 Petr Messner napsal(a):<br>
    </div>
    <blockquote
cite="mid:CAK9Q5BQ9rgHH4C6xeQGMg-FkfJ+ZVoZJbN7tQQDi0=GjLkzX+Q@mail.gmail.com"
      type="cite">
      <div dir="ltr">Njn, když chceš hackovat, tak na to musíš mít
        křídla :)
        <div><br>
        </div>
        <div>Z chyby <span style="font-size:12.8000001907349px"><font
              face="monospace, monospace">'generator' object has no
              attribute 'set_configuration'</font> je zřejmé, že to <font
              face="monospace, monospace">usb.core.find</font> vrací
            iterátor. No a proč to vrací iterátor? Protože <a
              moz-do-not-send="true"
href="https://github.com/walac/pyusb/blob/a83f17e568bf893bed53fa984f00c1e168348cb9/usb/core.py#L1127">deklarace
              té funkce</a> je</span></div>
        <div><span style="font-size:12.8000001907349px"><br>
          </span></div>
        <div><span class=""
            style="color:rgb(167,29,93);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">def</span><span
            style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">
          </span><span class=""
            style="color:rgb(121,93,163);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">find</span><span
            style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">(</span><span
            class=""
            style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">find_all</span><span
            class=""
            style="color:rgb(167,29,93);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">=</span><span
            class=""
            style="color:rgb(0,134,179);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">False</span><span
            style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">,
          </span><span class=""
            style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">backend</span><span
            style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">
          </span><span class=""
            style="color:rgb(167,29,93);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">=</span><span
            style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">
          </span><span class=""
            style="color:rgb(0,134,179);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">None</span><span
            style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">,
          </span><span class=""
            style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">custom_match</span><span
            style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">
          </span><span class=""
            style="color:rgb(167,29,93);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">=</span><span
            style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">
          </span><span class=""
            style="color:rgb(0,134,179);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">None</span><span
            style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">,
            **</span><span class=""
            style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">args</span><span
            style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">):</span><span
            style="font-size:12.8000001907349px"><br>
          </span></div>
        <div class="gmail_extra"><br>
        </div>
        <div class="gmail_extra">a když to voláš bez keyword argumentů,
          tak se jako <font face="monospace, monospace">find_all</font>
          nastaví to 0x10C48, což se interpretuje podobně jako <font
            face="monospace, monospace">find_all=True</font>.</div>
        <div class="gmail_extra"><br>
        </div>
        <div class="gmail_extra">Takže o krok zpět k <span
            style="font-size:12.8000001907349px"><font face="monospace,
              monospace">ValueError: No backend available</font>. 
            Podívej se do zdrojáku, co to dělá. Prochází to moduly </span><span
            style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">usb.backend.libusb1</span><span
            style="font-size:12.8000001907349px">,</span><span
            style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre"> u</span><span
            style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">sb.backend.libusb0</span><span
            style="font-size:12.8000001907349px"> a </span><span
            style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">usb.backend.openusb</span><span
            style="font-size:12.8000001907349px"> a volá to jejich
            funkci </span><span
            style="color:rgb(51,51,51);font-family:Consolas,'Liberation
Mono',Menlo,Courier,monospace;font-size:12px;line-height:16.7999992370605px;white-space:pre">get_backend()</span><span
            style="font-size:12.8000001907349px">, která se snaží danou
            DLL (nebo .so) knihovnu načíst (protože <font
              face="monospace, monospace">usb.backend.* </font>jsou jen
            ctypes wrappery "céčkových" knihoven). Takže problém je v
            tom, že žádnou z těch knihoven buď nemáš k dispozici, nebo
            ji pyusb nemůže najít.</span></div>
        <div class="gmail_extra"><span
            style="font-size:12.8000001907349px"><br>
          </span></div>
        <div class="gmail_extra">PM</div>
        <div class="gmail_extra"><br>
          <div class="gmail_quote">Dne 16. května 2015 16:28 "Ing.
            Vladislav Ludík" <span dir="ltr"><<a
                moz-do-not-send="true" href="mailto:vlada@ludik.cz"
                target="_blank">vlada@ludik.cz</a>></span> napsal(a):<br>
            <blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">Ještě
              chyby:<br>
              <br>
              dev = usb.core.find(idVendor=0x10C48, idProduct=0xEA60)<br>
              <br>
              hlásí chybu:<br>
              <br>
              dev = usb.core.find(idVendor=0x10C48, idProduct=0xEA60)<br>
                File "build\bdist.win32\egg\usb\core.py", line 1199, in
              find<br>
                  raise ValueError('No backend available')<br>
              ValueError: No backend available<br>
              <br>
              Když jsem změnil řádek na:<br>
              <br>
              dev = usb.core.find(0x10C48, 0xEA60)<br>
              <br>
              program projde dále, ale hlásí chybu:<br>
              <br>
              dev.set_configuration()<br>
              AttributeError: 'generator' object has no attribute
              'set_configuration'<br>
              <br>
              Co s tím dále, nevím.
              <div class="">
                <div class="h5"><br>
                  <br>
                  Díky Vláďa<br>
                  _______________________________________________<br>
                  Python mailing list<br>
                  <a moz-do-not-send="true" href="mailto:python@py.cz"
                    target="_blank">python@py.cz</a><br>
                  <a moz-do-not-send="true"
                    href="http://www.py.cz/mailman/listinfo/python"
                    target="_blank">http://www.py.cz/mailman/listinfo/python</a><br>
                  <br>
                  Visit: <a moz-do-not-send="true"
                    href="http://www.py.cz" target="_blank">http://www.py.cz</a><br>
                </div>
              </div>
            </blockquote>
          </div>
          <br>
        </div>
      </div>
      <br>
      <fieldset class="mimeAttachmentHeader"></fieldset>
      <br>
      <pre wrap="">_______________________________________________
Python mailing list
<a class="moz-txt-link-abbreviated" href="mailto:python@py.cz">python@py.cz</a>
<a class="moz-txt-link-freetext" href="http://www.py.cz/mailman/listinfo/python">http://www.py.cz/mailman/listinfo/python</a>

Visit: <a class="moz-txt-link-freetext" href="http://www.py.cz">http://www.py.cz</a></pre>
    </blockquote>
    <br>
  </body>
</html>