install.html

很少见的linux下的红外口的工具

      Type <em>su</em> to get root privileges and start <em>mode2</em>
      (<B>Warning:</B> don't confuse mode2 with mode3: mode3 will set
      your video card to a vesa mode using the vesa bios
      calls...). This should load the kernel module into the kernel
      and display the infrared signals. Hold your remote control to
      your infrared receiver and press some buttons. You should see an
      output like this (the values of your remote will probably be
      different):
    </P>
    
    <PRE>
	pulse 93
	space 4965
	pulse 108
	space 4969
	pulse 93
	space 7496
	pulse 93
	space 7489
	pulse 93
	space 47915
	pulse 138
	space 7475
	pulse 93
	space 7494
	pulse 93</PRE>
    <P>
      If you don't see anything, try to find out: (a) if you selected
      the correct driver with the correct settings (I/O base address,
      IRQ), (b) if you use a remote which works and (c) if your
      hardware works. The voltage input of the infrared receiver
      should be 5V +/- 0.5V, the output pin of the receiver should be
      about 0.5V less than the input voltage.
    </P>
    
    <P>
      From time to time there should be long spaces (&gt;30000). If you
      can see very long pulses this usually means that sense auto
      detection of your serial port IR receiver circuit has
      failed. You can override sense auto detection by loading the
      device driver with the following option:</P>
    
    <P>
      <em>insmod lirc_serial sense=0</em> if your receiver circuit is active
      high or<BR>

      <em>insmod lirc_serial sense=1</em> if your receiver circuit is active
      low.
    </P>

    <P>
      Well, the driver seems to work, now let's test if lircd also
      does its job. This only works, if lircd uses a <A
      HREF="configure.html#lircd.conf">config file</A> which fits to
      your remote control. Use <A
      HREF="irrecord.html"><em>irrecord</em></A> in the case the LIRC
      distribution doesn't provide a config file suitable for your
      remote and it still is not available at the LIRC homepage. A
      more detailed discussion of creating new config files is
      available in the section about, you guess it: <A
      HREF="help.html#new_remote">Adding new remote controls</A>.
    </P>

    <P>
      Then start the decoder daemon with (make sure it is in your
      path): <em>lircd</em> [config file]
    </P>
    
    <P>
      The following program dumps the decoded key codes from lircd to
      stdout: <em>irw</em>
    </P>
    
    <P>
      This looks like this (depending on your remote):
    </P>
    <PRE>
	0000000000f40bf0 00 1_DOWN ANIMAX
	0000000000f40bf0 01 1_DOWN ANIMAX
	0000000000f40bf0 02 1_DOWN ANIMAX
	0000000000f40bf0 03 1_DOWN ANIMAX
	0000000000f40bf0 04 1_DOWN ANIMAX
	0000000000f40bf0 05 1_DOWN ANIMAX
	0000000000748bf0 00 1_UP ANIMAX
	0000000000748bf0 01 1_UP ANIMAX
	0000000000748bf0 02 1_UP ANIMAX
	0000000000718ef0 00 RED_BUTTON_UP ANIMAX</PRE>
    <P>
      If the driver test did work, but you now see nothing, then check
      <em>/var/log/lircd</em>. If you still see nothing suspicious
      compile lircd in DEBUG mode and look at the log file again. In
      debug mode lircd has an additional command line option that lets
      you choose the detail level of debug information.
    </P>
    
    <A NAME="sending"></A><HR>
    <H1 ALIGN="CENTER">Sending infrared signals</H1>
    <HR WIDTH="70%">
    
    <P>
      The LIRC package contains the <A HREF="rc.html">rc</A> tool for
      sending infrared signals to e.g. your TV or CD player. For
      reliable transmission a good config file is even more important
      than for receiving. A discussion of all the infrared protocols
      is way beyond the scope of this manual but when creating a
      config file at least read the <A
	HREF="help.html#new_remote">hints</A> at the end of this
      manual. You can find exact timing specifications for most common
      inside the remotes/generic/ directory of the LIRC package.
    </P>
    <P>
      If you want a graphical interface for controlling your devices
      using LIRC, you should have a look at xrc. You can download the
      xrc package from the LIRC homepage. xrc is a Qt based
      program. Setting up xrc and Qt is a bit tricky so if you don't
      manage to compile it you can still use rc. It has the full
      functionality you need.
    </P>

    <!-- Uninstall LIRC ++++++++++++++++++++++++++++++++++++++++++++++++++ -->
    
    <A NAME="uninstall"></A><HR>
    <H1 ALIGN="CENTER">Uninstall</H1>
    <HR WIDTH="70%">
    
    <UL>
      <LI>Remove the installed binaries, and device nodes:<BR>
	<BR>
	<em>make uninstall</em><BR>
	<BR>
      </LI>
      <LI>Remove the config files, if you don't need them anymore:<BR>
	<BR>
	<em>rm /etc/lircd.conf /etc/lircmd.conf ~/.lircrc</em><BR>
	<BR>
      </LI>
    </UL>
    
    <!-- Module specific information +++++++++++++++++++++++++++++++++++++ -->
    
    <A NAME="specific"></A><HR>
    <H1 ALIGN="CENTER">Module specific information</H1>
    <HR WIDTH="70%">
    
    <H3>lirc_gpio</H3>
    
    <P>
      This module receives scan codes from the GPIO register of bt8[47]8
      chips using polling or interrupts if the card supports this. It is a
      "plugin" for the <em>lirc_dev</em> module. It loads <em>bttv</em> and
      <em>lirc_dev</em> modules if they are not loaded yet.<BR>
    </P>

    <P>
      Parameters are:
    </P>
    <UL>
      <LI><B>debug</B> (0) - value other than 0 (zero) enables
	printing more log messages</LI>
      <LI><B>card</B> (0) - number of TV card from which receive scan
	codes</LI> <LI><B>minor</B> (-1) - minor device number for
	/dev/lirc device</LI>
      <LI><B>gpio_mask</B> (0) - bit mask used for extracting usable
	bits from GPIO value<BR> If this parameter is equal to 0 then
	the module tries to autodetect the TV card and the remaining
	parameters are ignored.</LI>
      <LI><B>gpio_lock_mask</B> (0) - if this value "anded" with GPIO
	value is non zero than it indicates that scan code is not
	ready (value of 0 of this parameter disables checking)</LI>
      <LI><B>gpio_xor_mask</B> (0) - bitmask applied (by xor
	operation) to GPIO value before lock_mask is checked</LI>
      <LI><B>soft_gap</B> (0) - minimal gap (in milliseconds) between
	two scan codes (value of 0 disables checking)</LI>
      <LI><B>sample_rate</B> (10) - how often (times per second) GPIO
	will be polled, set to 0 for interrupt driven input</LI>
    </UL>
    <P>
      Supported hardware:
    </P>
    <UL>
      <LI><B>Prolink - PixelView PlayTV pro</B> - parameters:
	gpio_mask=0x1f00, gpio_lock_mask=0x8000, gpio_xor_mask=0,
	soft_gap=400, sample_rate=12</LI>
      <LI><B>AVerMedia - TVCapture98 and TVPhone98 (pre 98 also)</B> -
	parameters: gpio_mask=0xf88000, gpio_lock_mask=0x10000,
	gpio_xor_mask=0x10000, soft_gap=0, sample_rate=10</LI>
      <LI>many more...</LI>
    </UL>
    <P>
      Autodetection is performed using the API from the <em>bttv</em>
      module - this means that if <em>bttv</em> doesn't properly
      recognize the card type the remote control won't work.
    </P>
    
    <!-- Updating from lirc-0.5.4 ++++++++++++++++++++++++++++++++++++++++ -->
    
    <A NAME="updating054"></A><HR>
    <H1 ALIGN="CENTER">Updating from lirc-0.5.4</H1>
    <HR WIDTH="70%">
    
    <P>
      This section only describes changes that break compatibility
      with older versions. Please read the <EM>NEWS</EM> file to learn
      about all new features of this release.
    </P>
    <P>
      The config files of <em>lircd</em> and <em>lircmd</em> are now
      located in <em>/usr/local/etc/</em> instead of <em>/etc/</em>
      per default. Most people prefer to make <em>/usr/local/etc/</em>
      a link to <em>/etc/</em>.
    </P>
    <P>
      The modules no longer are uniformly installed as <em>lirc.o</em>
      but are called lirc_<em>driver</em>.o depending on the driver
      you are using. Therefore you might have to edit your
      <em>/etc/conf.modules</em> and change the line
    </P>
    <PRE>
    alias char-major-61 lirc</PRE>
    <P>
      to whatever you need.
    </P>
    <P>
      LIRC now supports the Irman directly. <em>lirmand</em> is no
      longer necessary. Before installing this version you should call
      <NOBR><EM>rm /dev/lirc</EM></NOBR> to remove the FIFO that was
      used in lirc-0.5.4. <em>/dev/lirc</em> now should be a link to
      the device the Irman is connected to (e.g. <em>/dev/ttyS1</em>).
    </P>

    <A NAME="updating062"></A><HR>
    <H1 ALIGN="CENTER">Updating from lirc-0.6.2</H1>
    <HR WIDTH="70%">

    <P>
      The lirc_gpio_p has been renamed to lirc_gpio. I now also
      contains support for TV cards that are able to generate
      interrupts if infra-red commands are received. The lirc_gpio_i
      driver that implemented this has been removed. The lirc_fly98
      also has been removed as it is now supported by the lirc_gpio
      driver.
    </P>
    
    <P>
      The <em>lirc_haup</em> module has been renamed to <em>lirc_i2c</em>.
    </P>
    
    <P>
      The transmit code in <em>lirc_serial</em> has been modified
      slightly. If you have problems transmitting decrease the
      frequency value in the lircd config file by approximately 2000.
    </P>
    
    <P>
      There have been major changes to the SIR driver. If you used
      this driver before you may have to generate new config files for
      your remotes. Transmitting is now more likely to work.
    </P>
    
    <P>
      The config file for the old AVerMedia TVCapture and TVPhone
      cards (pre 98) has changed. Please use the new config file that
      you can find in <em>remotes/avermedia/lircd.conf.avermedia</em>.
    </P>
    
    <A NAME="updating063"></A><HR>
    <H1 ALIGN="CENTER">Updating from lirc-0.6.3</H1>
    <HR WIDTH="70%">
    
    <P>lircd.conf and lircmd.conf are in /etc again.</P>
    
    <P>
      Two independend bugs were fixed in the Irdeo and home-brew
      transmitter code that affected correct pulse/space timings in
      some situations. This might break config files that did work
      with previous versions.
    </P>

    <A NAME="updating064"></A><HR>
    <H1 ALIGN="CENTER">Updating from lirc-0.6.4</H1>
    <HR WIDTH="70%">
    
    <P>
      AVerMedia TV cards with ID 0x00011461 and 0x00041461 should
      finally work with the provided config files. That means they
      will no longer work with the config files you have created
      yourself.
    </P>
    <P>
      The I/O base address for some modules now is set with the
      <em>io</em> parameter. (formerly: lirc_sir = iobase, lirc_serial
      and lirc_parallel = port).
    </P>

    <A NAME="updating065"></A><HR>
    <H1 ALIGN="CENTER">Updating from lirc-0.6.5</H1>
    <HR WIDTH="70%">
    
    <P>
      The config file for the Pixelview PlayTV pro and compatible TV
      cards has changed. Please use the config file in
      <em>remotes/pixelview/lircd.conf.playtv_pro</em>.
    </P>
    <P>
      The config file for the Winfast TV2000 and compatible TV cards
      has changed. Please use the config file in
      <em>remotes/winfast/lircd.conf.tv2000</em>.
    </P>

<!-- +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->

		<BR><BR>
		<CENTER>[<A HREF="http://www.lirc.org/">LIRC homepage</A>]<BR>
		  <I>The LIRC Manual, last update: 12-Sep-2002</I></CENTER>
		<BR><BR>
	      </TD>
	      <TD WIDTH="15%">&#160;<BR></TD>
	    </TR>
	  </TABLE>
	</TD>
      </TR>
      <TR>
	<TD CLASS="menu" WIDTH="100%">&#160;<BR>
	</TD>
      </TR>
    </TABLE>
  </BODY>
</HTML>