From: Vikram H. <har...@op...> - 2003-08-30 05:18:59
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To Whom It May Concern, I was wondering if you could help me. I intend to use player to communicate with sensors using a multi-purpose DAC (data acquisition card). This card comes with its own drivers for Linux. The card itself is just a PCI card that slots into the PC. I was wondering how do I get Player to work with this device? Do I use the drivers that came with card or do I have to make my own? Thankyou Vikram |
From: Richard V. <va...@hr...> - 2003-08-30 05:58:53
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Hi Vikram, It is very likely that you will need to write a Player driver for your card. You should check the player supported-hardware list http://playerstage.sourceforge.net/faq.html#player_hardware but I'm pretty sure we don't have a driver for your card. The good news is that writing a Player driver is pretty straightforward if you have hardware drivers already. Essentially you just interpret between the data that your Linux driver is producing and consuming, and Player's device-independent formats. Take a look at some of the Player driver code to get an idea of what you need to do. The waveaudio driver is a reasonable place to start; it is a very simple example that shifts data between the audio driver's interface (/dev/audio in the filesystem) and Player. If you write a driver, please consider contributing it to the project. Player would definitely benefit from some DAC support, and you could make some people happy. best, Richard On Sat, 30 Aug 2003, Vikram Harinath wrote: > To Whom It May Concern, > > I was wondering if you could help me. I intend to use player to > communicate with sensors using a multi-purpose DAC (data acquisition > card). This card comes with its own drivers for Linux. The card itself > is just a PCI card that slots into the PC. > > I was wondering how do I get Player to work with this device? Do I use > the drivers that came with card or do I have to make my own? > > Thankyou > > Vikram > > > > ------------------------------------------------------- > This sf.net email is sponsored by:ThinkGeek > Welcome to geek heaven. > http://thinkgeek.com/sf > _______________________________________________ > Playerstage-developers mailing list > Pla...@li... > https://lists.sourceforge.net/lists/listinfo/playerstage-developers > -- Richard Vaughan / HRL Laboratories / va...@hr... / +1 310.317.5689 |
From: brian g. <ge...@ro...> - 2003-08-30 21:48:28
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On Fri, 29 Aug 2003, Richard Vaughan wrote: > > The good news is that writing a Player driver is pretty straightforward if > you have hardware drivers already. > In addition to looking at existing driver code, Chapter 8 of the Player User Manual, available here: http://playerstage.sourceforge.net/doc/doc.html is a pretty complete reference for writing a new driver. Let us know if you have any questions. The first thing to do is decide which Player interface your device will support. We already have 'dio' and 'aio' interfaces for digital and analog I/O, respectively, but they are somewhat limited. I'm happy to change one of those interfaces or add new ones, as necessary to support a general purpose DAC. brian. |