Chuck Hallenbeck and I were talking about speakupconf earlier today, and he pointed out that most of the files under /sys/module/speakup/parameters end in a blank line. You can actually see the blank lines when you cat the files. This is causing trouble for speakupconf. I had a look at other modules that provide a parameters/ subdirectory, and none of their files end in a blank line. Next, I looked at kernel/params.c, from my copy of the kernel source tree. That file provides some param_get_* functions that are called when a user reads data from a "parameter" file under /sys. They resemble the get_* functions in src/paramhelpers.c from the Speakup source tree, with one exception. Most of Speakup's get_* functions put a newline at the end of the buffer to which they write, but the ones in kernel/params.c do not. Thus, most of Speakup's parameter/ files end in a blank line. I have a patch to fix this, and I'll send it after some testing. If you want to see how this issue affects speakupconf, execute the following: speakupconf save cp ~/.speakup/SYNTHNAME/keymap /sys/module/speakup/parameters/keymap cp terminates with an "invalid argument" error from a call to write. Next, remove the blank line from the end of ~/.speakup/SYNTHNAME/keymap, and try the same cp invocation. It succeeds. (Note: SYNTHNAME is the name of your synth, E.G., soft.) -- Chris
