# from Eric Wilhelm # on Thursday 21 June 2007 03:27 am: >http://scratchcomputing.com/svn/Linux-USBKeyboard/trunk/examples/numpad.pl
That link now gives 404 because it got renamed to echo_chars.pl. But there are more fun examples in that directory now: http://scratchcomputing.com/svn/Linux-USBKeyboard/trunk/examples/ >I thought about having _char() return undef, but I'm a bit rusty on > how to do that and that just means having to always check defined() > vs the maybe-more-convenient "zero length string" we get with this > setup. I realized that the "char" return type was causing it to return 1-byte length "\0" scalars (I guess that's the default typemap?) Couldn't figure out how to build a char* out of a char (I can make one that plays nicely with printf, but not with Inline ... hmph) so I just did SV* directly. >I'm thinking a filehandle-like usage would be really cool, but I'm >having a hard time finding a reason to write any more C code (because > I could just pipe-open a child for reading.) That's done now by "my $fh = Linux::USBKeyboard->open(@devspec);", which plays nicely with IO::Select :-D Automated testing in this realm is a bit difficult. I think it requires a robot pushing buttons :-/ --Eric -- But you can never get 3n from n, ever, and if you think you can, please email me the stock ticker of your company so I can short it. --Joel Spolsky --------------------------------------------------- http://scratchcomputing.com ---------------------------------------------------
