blog/Lets_make_hardware_dongles_easier_to_use_in_Debian.html

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   6     <title>Petter Reinholdtsen: Lets make hardware dongles easier to use in Debian</title>
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  14  <h1>
  15      <a href="http://people.skolelinux.org/pere/blog/">Petter Reinholdtsen</a>
  16
  17  </h1>
  18
  19 </div>
  20
  21
  22     <div class="entry">
  23       <div class="title">Lets make hardware dongles easier to use in Debian</div>
  24       <div class="date"> 9th January 2013</div>
  25       <div class="body"><p>One thing that annoys me with Debian and Linux distributions in
  26 general, is that there is a great package management system with the
  27 ability to automatically install software packages by downloading them
  28 from the distribution mirrors, but no way to get it to automatically
  29 install the packages I need to use the hardware I plug into my
  30 machine.  Even if the package to use it is easily available from the
  31 Linux distribution.  When I plug in a LEGO Mindstorms NXT, it could
  32 suggest to automatically install the python-nxt, nbc and t2n packages
  33 I need to talk to it.  When I plug in a Yubikey, it could propose the
  34 yubikey-personalization package.  The information required to do this
  35 is available, but no-one have pulled all the pieces together.</p>
  36
  37 <p>Some years ago, I proposed to
  38 <a href="http://lists.debian.org/debian-devel/2010/05/msg01206.html">use
  39 the discover subsystem to implement this</a>.  The idea is fairly
  40 simple:
  41
  42 <ul>
  43
  44 <li>Add a desktop entry in /usr/share/autostart/ pointing to a program
  45   starting when a user log in.</li>
  46
  47 <li>Set this program up to listen for kernel events emitted when new
  48   hardware is inserted into the computer.</li>
  49
  50 <li>When new hardware is inserted, look up the hardware ID in a
  51   database mapping to packages, and take note of any non-installed
  52   packages.</li>
  53
  54 <li>Show a message to the user proposing to install the discovered
  55   package, and make it easy to install it.</li>
  56
  57 </ul>
  58
  59 <p>I am not sure what the best way to implement this is, but my
  60 initial idea was to use dbus events to discover new hardware, the
  61 discover database to find packages and
  62 <a href="http://www.packagekit.org/">PackageKit</a> to install
  63 packages.</p>
  64
  65 <p>Yesterday, I found time to try to implement this idea, and the
  66 draft package is now checked into
  67 <a href="http://anonscm.debian.org/viewvc/debian-edu/trunk/src/hw-support-handler/">the
  68 Debian Edu subversion repository</a>.  In the process, I updated the
  69 <a href="http://packages.qa.debian.org/d/discover-data.html">discover-data</a>
  70 package to map the USB ids of LEGO Mindstorms and Yubikey devices to
  71 the relevant packages in Debian, and uploaded a new version
  72 2.2013.01.09 to unstable.  I also discovered that the current
  73 <a href="http://packages.qa.debian.org/d/discover.html">discover</a>
  74 package in Debian no longer discovered any USB devices, because
  75 /proc/bus/usb/devices is no longer present.  I ported it to use
  76 libusb as a fall back option to get it working.  The fixed package
  77 version 2.1.2-6 is now in experimental (didn't upload it to unstable
  78 because of the freeze).</p>
  79
  80 <p>With this prototype in place, I can insert my Yubikey, and get this
  81 desktop notification to show up (only once, the first time it is
  82 inserted):</p>
  83
  84 <p align="center"><img src="http://people.skolelinux.org/pere/blog/images/2013-01-09-hw-autoinstall.png"></p>
  85
  86 <p>For this prototype to be really useful, some way to automatically
  87 install the proposed packages by pressing the "Please install
  88 program(s)" button should to be implemented.</p>
  89
  90 <p>If this idea seem useful to you, and you want to help make it
  91 happen, please help me update the discover-data database with mappings
  92 from hardware to Debian packages.  Check if 'discover-pkginstall -l'
  93 list the package you would like to have installed when a given
  94 hardware device is inserted into your computer, and report bugs using
  95 reportbug if it isn't.  Or, if you know of a better way to provide
  96 such mapping, please let me know.</p>
  97
  98 <p>This prototype need more work, and there are several questions that
  99 should be considered before it is ready for production use.  Is dbus
 100 the correct way to detect new hardware?  At the moment I look for HAL
 101 dbus events on the system bus, because that is the events I could see
 102 on my Debian Squeeze KDE desktop.  Are there better events to use?
 103 How should the user be notified?  Is the desktop notification
 104 mechanism the best option, or should the background daemon raise a
 105 popup instead?  How should packages be installed?  When should they
 106 not be installed?</p>
 107
 108 <p>If you want to help getting such feature implemented in Debian,
 109 please send me an email. :)</p>
 110 </div>
 111
 112       <div class="tags">Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/isenkram">isenkram</a>.</div>
 113
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 232
 233 </ul></li>
 234
 235 <li>2014
 236 <ul>
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 238 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/01/">January (2)</a></li>
 239
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 259
 260 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/12/">December (5)</a></li>
 261
 262 </ul></li>
 263
 264 <li>2013
 265 <ul>
 266
 267 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/01/">January (11)</a></li>
 268
 269 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/02/">February (9)</a></li>
 270
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 288
 289 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/12/">December (3)</a></li>
 290
 291 </ul></li>
 292
 293 <li>2012
 294 <ul>
 295
 296 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/01/">January (7)</a></li>
 297
 298 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/02/">February (10)</a></li>
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 317
 318 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/12/">December (7)</a></li>
 319
 320 </ul></li>
 321
 322 <li>2011
 323 <ul>
 324
 325 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/01/">January (16)</a></li>
 326
 327 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/02/">February (6)</a></li>
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 345 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/11/">November (3)</a></li>
 346
 347 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/12/">December (1)</a></li>
 348
 349 </ul></li>
 350
 351 <li>2010
 352 <ul>
 353
 354 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/01/">January (2)</a></li>
 355
 356 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/02/">February (1)</a></li>
 357
 358 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/03/">March (3)</a></li>
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 360 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/04/">April (3)</a></li>
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 362 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/05/">May (9)</a></li>
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 364 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/06/">June (14)</a></li>
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 367
 368 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/08/">August (13)</a></li>
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 372 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/10/">October (9)</a></li>
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 374 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/11/">November (13)</a></li>
 375
 376 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/12/">December (12)</a></li>
 377
 378 </ul></li>
 379
 380 <li>2009
 381 <ul>
 382
 383 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/01/">January (8)</a></li>
 384
 385 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/02/">February (8)</a></li>
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 387 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/03/">March (12)</a></li>
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 389 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/04/">April (10)</a></li>
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 391 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/05/">May (9)</a></li>
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 393 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/06/">June (3)</a></li>
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 395 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/07/">July (4)</a></li>
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 397 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/08/">August (3)</a></li>
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 399 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/09/">September (1)</a></li>
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 401 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/10/">October (2)</a></li>
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 403 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/11/">November (3)</a></li>
 404
 405 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/12/">December (3)</a></li>
 406
 407 </ul></li>
 408
 409 <li>2008
 410 <ul>
 411
 412 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/11/">November (5)</a></li>
 413
 414 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/12/">December (7)</a></li>
 415
 416 </ul></li>
 417
 418 </ul>
 419
 420
 421
 422 <h2>Tags</h2>
 423 <ul>
 424
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 460
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 470
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 472
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 477  <li><a href="http://people.skolelinux.org/pere/blog/tags/ldap">ldap (9)</a></li>
 478
 479  <li><a href="http://people.skolelinux.org/pere/blog/tags/lego">lego (4)</a></li>
 480
 481  <li><a href="http://people.skolelinux.org/pere/blog/tags/lenker">lenker (8)</a></li>
 482
 483  <li><a href="http://people.skolelinux.org/pere/blog/tags/lsdvd">lsdvd (2)</a></li>
 484
 485  <li><a href="http://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (1)</a></li>
 486
 487  <li><a href="http://people.skolelinux.org/pere/blog/tags/mesh network">mesh network (8)</a></li>
 488
 489  <li><a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (41)</a></li>
 490
 491  <li><a href="http://people.skolelinux.org/pere/blog/tags/nice free software">nice free software (11)</a></li>
 492
 493  <li><a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk (299)</a></li>
 494
 495  <li><a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug (191)</a></li>
 496
 497  <li><a href="http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (34)</a></li>
 498
 499  <li><a href="http://people.skolelinux.org/pere/blog/tags/open311">open311 (2)</a></li>
 500
 501  <li><a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (72)</a></li>
 502
 503  <li><a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern (107)</a></li>
 504
 505  <li><a href="http://people.skolelinux.org/pere/blog/tags/raid">raid (2)</a></li>
 506
 507  <li><a href="http://people.skolelinux.org/pere/blog/tags/reactos">reactos (1)</a></li>
 508
 509  <li><a href="http://people.skolelinux.org/pere/blog/tags/reprap">reprap (11)</a></li>
 510
 511  <li><a href="http://people.skolelinux.org/pere/blog/tags/rfid">rfid (3)</a></li>
 512
 513  <li><a href="http://people.skolelinux.org/pere/blog/tags/robot">robot (10)</a></li>
 514
 515  <li><a href="http://people.skolelinux.org/pere/blog/tags/rss">rss (1)</a></li>
 516
 517  <li><a href="http://people.skolelinux.org/pere/blog/tags/ruter">ruter (6)</a></li>
 518
 519  <li><a href="http://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (2)</a></li>
 520
 521  <li><a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (55)</a></li>
 522
 523  <li><a href="http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (4)</a></li>
 524
 525  <li><a href="http://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (5)</a></li>
 526
 527  <li><a href="http://people.skolelinux.org/pere/blog/tags/standard">standard (56)</a></li>
 528
 529  <li><a href="http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (6)</a></li>
 530
 531  <li><a href="http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (12)</a></li>
 532
 533  <li><a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (55)</a></li>
 534
 535  <li><a href="http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (4)</a></li>
 536
 537  <li><a href="http://people.skolelinux.org/pere/blog/tags/usenix">usenix (2)</a></li>
 538
 539  <li><a href="http://people.skolelinux.org/pere/blog/tags/valg">valg (9)</a></li>
 540
 541  <li><a href="http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri (13)</a></li>
 542
 543  <li><a href="http://people.skolelinux.org/pere/blog/tags/video">video (69)</a></li>
 544
 545  <li><a href="http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (4)</a></li>
 546
 547  <li><a href="http://people.skolelinux.org/pere/blog/tags/web">web (41)</a></li>
 548
 549 </ul>
 550
 551
 552     </div>
 553     <p style="text-align: right">
 554  Created by <a href="http://steve.org.uk/Software/chronicle">Chronicle v4.6</a>
 555 </p>
 556
 557   </body>
 558 </html>