LIRC - FAQ FAQ Hardware related • Is my USB IrDA dongle supported by LIRC? No, it's technically not possible to use USB IrDA dongles (as specified by the ) with LIRC. This does not apply to USB receivers in general. • Can I use my home-brew receiver and transmitter on the same serial port? • The value of the resistor in the receiver circuit is labeled as '4k7' Ohm. Is this 4.7 Ohm, 4.7 kOhm or what? 4k7 Ohm means 4700 Ohm. K is the abbreviation of kilo. • Can I use a home-brew LIRC receiver with a Serial to USB adapter? No, this won't work. But there is a project working on a dedicated or you can connect an IR receiver to a. Using an Irman with USB adapter should work though. • I have a Hauppauge TV card. Configuration guide About this guide. Building a serial port transmitter. Modprobe lirc-serial The lircd-setup script which by default is run before the lircd service runs this setup code as root. The code is ordinary shell commands. [LIRC homepage]. Can I use a different remote control with this TV card except the original Hauppauge remote control? The Hauppauge remote control uses the protocol. Libro la maleta de andy andrews pdf software download. You should be able to use any TV remote control that uses this protocol. Common brands that use this protocol are Philips and Marantz. A short description how to setup LIRC with an was posted on the mailing list. • How do the drivers for the home-brew receivers work? Do they use polling? No, the serial port driver is fully interrupt driven. On each edge of the IR signal the interrupt handler is called and the time since the last interrupt is calculated. As the parallel port only generates interrupts on the rising edge of the input signal, the parallel port driver uses polling with the help of the hardware timer until the signal becomes low again. As it is polling only for microseconds this has no noticeable effect on system performance. • I would like to connect an LCD display and an home-brew IR receiver to the same serial port. Will this work? No, unless somebody writes a driver that merges the functionality of the kernel serial port driver and the lirc_serial driver. This is not trivial. • I need a IR transmitter device to control my TV/VCR/Settop box. But I'd rather buy a device than. Where can I buy LIRC compatible transmitters? Check the driver documentation in the. Here is several commercially available devices including IrToy, IguanaIR and Tira. • I need a IR transmitter device to control my TV/VCR/Settop box. But I'd rather buy a device than. Where can I buy LIRC compatible transmitters? You can buy serial port or USB transceivers. They provide a LIRC compatible socket interface. Software setup • I have trouble to create a working lircd config file for my remote. What can I do? Please read the documentation about how to. • Which kernel module do I have to load for my hardware? The documentation contains a detailed how to setup the various devices supported by LIRC. • When I run irrecord or mode2 I get an error message like this: mode2: error opening /dev/lirc0 mode2: Device or resource busy Another application is probably already accessing /dev/lirc0. Only one process can use the device at a time. You can find out which process uses the device by calling (as root) fuser /dev/lirc0. • Most of the time I have to push a button twice for LIRC to recognize it. What's wrong? The remote control probably uses the RC-5, RC-6 or RECS80 protocol, but irrecord wasn't able to recognize this correctly. Try running irrecord remotes/generic/RC-5.conf, irrecord remotes/generic/RC-6.conf or irrecord remotes/generic/RECS80.conf. You will find these template config files inside the LIRC source package. If this won't work read. • Every time I press a button on my remote control irw will show at least 5 events (or any other number > 1) independent of how short I try pressing the button. In most cases this is the correct behavior. Many remote controls send the same code multiple times to make sure that at least one code comes through to the receiver when you press a button for a short time.
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Март 2019
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