Introduce the generic I/O USB channel definition handler. (dm)


git-svn-id: svn://mielke.cc/main/brltty@8078 91a5dbb7-01b9-0310-9b5f-b28072856b6e
Convert the Alva braille driver to use the generic I/O functions. (dm)


git-svn-id: svn://mielke.cc/main/brltty@8079 91a5dbb7-01b9-0310-9b5f-b28072856b6e
Revive the ability to build the Alva speech driver. (dm)


git-svn-id: svn://mielke.cc/main/brltty@8080 91a5dbb7-01b9-0310-9b5f-b28072856b6e
Add gioWriteHidReport() and gioWriteHidFeature(). (dm)


git-svn-id: svn://mielke.cc/main/brltty@8081 91a5dbb7-01b9-0310-9b5f-b28072856b6e
Allow a driver to override the way that the generic I/O functions do USB output. (dm)


git-svn-id: svn://mielke.cc/main/brltty@8082 91a5dbb7-01b9-0310-9b5f-b28072856b6e