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<updated>2016-01-19T22:08:29+01:00</updated>

<author><name><![CDATA[Yubico Forum]]></name></author>
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<entry>
<author><name><![CDATA[KenMacD]]></name></author>
<updated>2016-01-19T22:08:29+01:00</updated>
<published>2016-01-19T22:08:29+01:00</published>
<id>https://forum.yubico.com/viewtopic.php?t=2172&amp;p=8200#p8200</id>
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<title type="html"><![CDATA[Yubikey4 3 second flashing]]></title>

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I'm getting a flash every 3 seconds with my Yubikey4.<br /><br />Thinks seem to work fine though. U2F/OTP work on the demo page.<br /><br /><div class="codetitle"><b>Code:</b></div><div class="codecontent">gpg --card-status</div> works, and after running this the light turns on solid, but instead flashes off quickly  every 3 seconds.<br /><br />Disabling CCID stops this from happening.<br /><br />In the logs for pcscd I see:<br /><br /><div class="codetitle"><b>Code:</b></div><div class="codecontent">Jan 19 16:49:51 yoga pcscd&#91;13889&#93;: 00000000 ifdhandler.c:130:CreateChannelByNameOrChannel() failed<br />Jan 19 16:49:51 yoga pcscd&#91;13889&#93;: 00000035 readerfactory.c:1043:RFInitializeReader() Open Port 0x200000 Failed (usb:1050/0407:libudev:0:/dev/bus/usb/002/095)<br />Jan 19 16:49:51 yoga pcscd&#91;13889&#93;: 00000003 readerfactory.c:335:RFAddReader() Yubico Yubikey 4 OTP+U2F+CCID init failed.<br />Jan 19 16:49:52 yoga pcscd&#91;13889&#93;: 00065025 ifdhandler.c:130:CreateChannelByNameOrChannel() failed<br />Jan 19 16:49:52 yoga pcscd&#91;13889&#93;: 00000011 readerfactory.c:1043:RFInitializeReader() Open Port 0x200002 Failed (usb:1050/0407:libudev:1:/dev/bus/usb/002/095)<br />Jan 19 16:49:52 yoga pcscd&#91;13889&#93;: 00000003 readerfactory.c:335:RFAddReader() Yubico Yubikey 4 OTP+U2F+CCID init failed.<br /></div><br /><br />A <div class="codetitle"><b>Code:</b></div><div class="codecontent">pcsc_scan</div> runs until identifying the card, then hangs.<br /><br /><div class="codetitle"><b>Code:</b></div><div class="codecontent">piv-tool --serial</div> worked yesterday, but now returns:<br /><br /><div class="codetitle"><b>Code:</b></div><div class="codecontent">Using reader with a card: Yubico Yubikey 4 OTP+U2F+CCID 00 00<br />sc_card_ctl(*, SC_CARDCTL_GET_SERIALNR, *) failed -1201<br /></div><br /><br />I've tried resetting both PIV and openpgp. With the yubico-piv-tool I did a generate/selfsign-certificate/import-certificate and it all worked.<br /><br />Other ideas?<p>Statistics: Posted by <a href="https://forum.yubico.com/memberlist.php?mode=viewprofile&amp;u=4150">KenMacD</a> — Tue Jan 19, 2016 10:08 pm</p><hr />
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