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| author |   Okash Khawaja <okash.khawaja@gmail.com> | 2017-05-15 18:45:37 +0100 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-05-16 14:19:41 +0200 |
| commit | 1c5973675cee92d5e8ad3a8a6e53a3e822bae271 (patch) | |
| tree | 2ef5bad2d418ac675b709e600b8bf6975e565fda /drivers/staging/speakup/synth.c | |
| parent | staging: speakup: migrate apollo, ltlk, audptr, decext, dectlk and spkout (diff) | |
| download | linux-dev-1c5973675cee92d5e8ad3a8a6e53a3e822bae271.tar.xz linux-dev-1c5973675cee92d5e8ad3a8a6e53a3e822bae271.zip | |
staging: speakup: flush tty buffers and ensure hardware flow control
This patch fixes the issue where TTY-migrated synths would take a while
to shut up after hitting numpad enter key. When calling synth_flush,
even though XOFF character is sent as high priority, data buffered in
TTY layer is still sent to the synth. This patch flushes that buffered
data when synth_flush is called.
It also tries to ensure that hardware flow control is enabled, by
setting CRTSCTS using tty's termios.
Reported-by: John Covici <covici@ccs.covici.com>
Signed-off-by: Okash Khawaja <okash.khawaja@gmail.com>
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/speakup/synth.c')
| -rw-r--r-- | drivers/staging/speakup/synth.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/staging/speakup/synth.c b/drivers/staging/speakup/synth.c index 9c2aa1b8b0ac..703553916097 100644 --- a/drivers/staging/speakup/synth.c +++ b/drivers/staging/speakup/synth.c @@ -120,6 +120,7 @@ EXPORT_SYMBOL_GPL(spk_do_catch_up); void spk_synth_flush(struct spk_synth *synth) { + synth->io_ops->flush_buffer(); synth->io_ops->synth_out(synth, synth->clear); } EXPORT_SYMBOL_GPL(spk_synth_flush); |