[BRLTTY] Problem with kernel module

[Dave Mielke]

[quoted lines by payman shaykhmehdi on 2015/12/14 at 10:21 +0330]

>when I run brltty the following error appears :
>
>*     brltty: kernel module not installed: pcspkr*

This is just a warning. It means that the pcspkr kernel module can't be 
modrobed, which, as far as brltty is concerned, isn't a problem. It might be a 
problem for the user, though.

Brltty plays what we call alert tunes for events the user might care about, 
e.g. trying to navigate beyond the edge of the screen, wrapping to the 
next/previous line, skipping over blank lines, etc. The default is to use the 
PC speaker to play these tunes. Its tune device can, however, be changed from 
within brltty's preferences menu to other things, e.g. to play PCM audio via 
the sound card.

Additionally, the about-to-be released version (5.3) of brltty contains a new 
feature that helps overcome a related problem. Wthout a physical PC speaker, or 
without the pcspkr kernel module, the regular console bell can't be heard 
either. Since a blind user can't see a visual bell, being able to hear the 
console bell is important to many. Brltty has a new setting called Console Bell 
Alert. If this setting is enabled then brltty listens for Linux console bell 
events, and plays them via its current tune device. So, with brltty running and 
this new setting enabled, and with the tune device set to PCM, the old familiar 
console bell can again be heard via the speakers, headset, or whatever the user 
is using.

>My os is  Raspbian (Raspberry Pi modification of debian) and 'modprobe
>pcspkr' command says :  "modprobe: FATAL: Module pcspkr not found".

So that's why brltty can't install it either. That's exactly what it tries to 
do.

-- 
Dave Mielke           | 2213 Fox Crescent | The Bible is the very Word of God.
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