Help with serial synths in 4.X kernels

[Al Sten-Clanton]

Using a hardware synth may be going against the grain, but I'll be 
mighty grateful for the patch if you have the chance to create it.

Best!

Al

On 2/23/2016 9:31 AM, John G Heim wrote:
> You should check the syslog. There are almost certainly messages in
> there reporting what is happening. I'll try to compile 4.3 kernels for
> ubuntu and debian over the next few days. I had planned to automate the
> process. Every time my ubuntu machines download a new kernel, generate a
> new patched kernel package. I never got around to it though. I was using
> a sed command to comment out the line that caused serial synths to not
> work so that automation was possible. Part of the problem here is that I
> have kind of given up on serial synths myself. I have been depending
> more and more on the combination of a braille display and software
> speech.  It seems to me that using a hardware speech synth is going
> against the grain these days.
> 02/23/2016 07:45 AM, Tony Baechler wrote:
>> Hello all,
>>
>> his is probably for Samuel, but I thought I would ask here in hopes
>> that others might have suggestions. I'm trying to compile 4.X kernels
>> (specifically 4.3.3) with working serial synth support, but so far no
>> luck. I've seen several patches posted here by Samuel, but I don't
>> know if they've been accepted into staging. I pulled a recent staging
>> snapshot and copied the speakup directory over that supplied with
>> kernel 4.3.3 in Debian. The kernel didn't compile, giving an error
>> that screen_pos is undefined. I copied main.c from the 4.3.3 source
>> which fixes the problem, but loading the speakup_dectlk module results
>> in silence. It seems that it still won't access the serial port, even
>> if I include ser=0 on the command line. I also tried applying John's
>> patch to the vanilla 4.3.3 sources. Again, it compiled, but loading
>> speakup_dectlk locked up the machine. I tried 4.4.0-trunk-amd64 from
>> Debian without success.
>>
>> Is there a diff with all of the Speakup patches posted to date which I
>> can apply to the kernel sources? Is there any chance that Debian will
>> pick up these patches soon since they apparently haven't made it to
>> the official staging tree? Am I missing something obvious? Samuel,
>> would you please post a file with all of your patches so far in a
>> central location to make them easier to find?
>>
>> For the record, John's build instructions don't work on recent
>> kernels. I've found that the following steps seem to work better:
>>
>> 1. Install the "linux-source" and "make-kpkg" packages.
>>
>> 2. Change to /usr/src/ which should have a tar.bz2 or tar.xz file with
>> the source. Extract the source which should create a
>> linux-source-X.Y.Z directory.
>>
>> 3. Change to linux-source-X.Y.Z.
>>
>> 4. As root or with sudo, run the following:
>>
>> make-kpkg --initrd buildpackage
>>
>> Note that on Ubuntu, you'll run into problems with .config missing.
>> Debian packages don't seem to have this problem, but to be safe, copy
>> a config.* file to .config in the linux-source directory. Apply any
>> Speakup patches before running make-kpkg. On an Intel I7 with 32 GB of
>> memory, the build process takes about three hours and builds several
>> .deb packages.
>>
>>
>
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