Overview

The following page describes the ALSA requirements for using or developing Tux Droid applications and services. It provides some guidelines for troubleshooting.

ALSA requirements

• the ALSA driver version 1.0.6 or higher for using sound applications with Tux Droid
  
• the latest usb-audio sound card driver
  

• the alsa-devel library version 1.0.6 or higher
  

ALSA installation status

You may check if ALSA is installed by typing in a terminal the following command:

$ cat /proc/asound/version

You will get an answer like:

Advanced Linux Sound Architecture Driver Version 1.0.6.

If the /proc/asound directory does not exist, then ALSA is not installed onto your system. If this is the case, or if you have a lower version, visit the official website of you Linux distribution to find out how to install or update ALSA.

ALSA modules load

You may check if the usb-audio sound driver is loaded with the command following command:

$ lsmod | grep snd_usb_audio

You should get the following... If not refer to troubleshooting section.

snd_usb_audio          69696  0 
snd_usb_lib            13504  1 snd_usb_audio
snd_hwdep               7044  1 snd_usb_audio
snd_pcm                76296  4 snd_usb_audio,snd_pcm_oss,snd_intel8x0,snd_ac97_codec
snd                    43776  12 snd_usb_audio,snd_rawmidi,snd_hwdep,snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss, ....

ALSA recognizing Tux Dongle

You may check if your Linux system is able to recognize the Tux Droid dongle by plugging it in and entering the command:

$ cat /proc/asound/cards

You will get an answer like:

[tux1@localhost ~]$ cat /proc/asound/cards

0 [A5451          ]: ALI5451 - ALI 5451
                    ALI 5451 at 0x1800, irq 11
1 [default        ]: USB-Audio - TUX RF DONGLE
                    C2ME BELGIUM TUX RF DONGLE  at usb-0000:00:0f.0-1, full speed

Installing ALSA drivers and libraries, setting up ALSA or troubleshooting

For driver or libraries installation and basic setup, the ALSA section of your distribution website will provide you with detailed information. Your favorite package manager tools (rpm, yum, pacman, ..) allow an easy download and update of libraries and drivers.

For non-standard ALSA setups or for developing audio applications, better visit ALSA opensrc.org. Up to date source code and brute comments relative to ALSA can be found on the official ALSA website . Very helpful troubleshooting information can be obtained at http://alsa.opensrc.org/TroubleShooting