kernel/linux.git/drivers/accessibility/speakup/synth.c, branch v5.10.257

speakup: Fix 8bit characters from direct synth

2024-04-13T10:58:30+00:00

[ Upstream commit b6c8dafc9d86eb77e502bb018ec4105e8d2fbf78 ] When userland echoes 8bit characters to /dev/synth with e.g. echo -e '\xe9' > /dev/synth synth_write would get characters beyond 0x7f, and thus negative when char is signed. When given to synth_buffer_add which takes a u16, this would sign-extend and produce a U+ffxy character rather than U+xy. Users thus get garbled text instead of accents in their output. Let's fix this by making sure that we read unsigned characters. Signed-off-by: Samuel Thibault Fixes: 89fc2ae80bb1 ("speakup: extend synth buffer to 16bit unicode characters") Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20240204155736.2oh4ot7tiaa2wpbh@begin Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin

speakup: Fix wait_for_xmitr for ttyio case

2020-08-18T11:15:32+00:00

This was missed while introducing the tty-based serial access. The only remaining use of wait_for_xmitr with tty-based access is in spk_synth_is_alive_restart to check whether the synth can be restarted. With tty-based this is up to the tty layer to cope with the buffering etc. so we can just say yes. Signed-off-by: Samuel Thibault Link: https://lore.kernel.org/r/20200804160637.x3iycau5izywbgzl@function Signed-off-by: Greg Kroah-Hartman

staging/speakup: Move out of staging

2020-07-29T12:02:41+00:00

The nasty TODO items are done. Signed-off-by: Samuel Thibault Link: https://lore.kernel.org/r/20200729003531.907370-1-samuel.thibault@ens-lyon.org Signed-off-by: Greg Kroah-Hartman