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| author | avg <avg@FreeBSD.org> | 2011-12-17 15:08:43 +0000 |
|---|---|---|
| committer | avg <avg@FreeBSD.org> | 2011-12-17 15:08:43 +0000 |
| commit | f6def40e18a13286043257337db12d9d78aa545e (patch) | |
| tree | cf89ca64a6042918d5429b9a17cfaa8421be34c2 /sys/dev/dcons | |
| parent | 04ff721cff67dd3e641289f950656b9dbd02d09f (diff) | |
| download | FreeBSD-src-f6def40e18a13286043257337db12d9d78aa545e.zip FreeBSD-src-f6def40e18a13286043257337db12d9d78aa545e.tar.gz | |
kern cons: introduce infrastructure for console grabbing by kernel
At the moment grab and ungrab methods of all console drivers are no-ops.
Current intended meaning of the calls is that the kernel takes control of
console input. In the future the semantics may be extended to mean that
the calling thread takes full ownership of the console (e.g. console
output from other threads could be suspended).
Inspired by: bde
MFC after: 2 months
Diffstat (limited to 'sys/dev/dcons')
| -rw-r--r-- | sys/dev/dcons/dcons_os.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/sys/dev/dcons/dcons_os.c b/sys/dev/dcons/dcons_os.c index d638d41..a37d64c 100644 --- a/sys/dev/dcons/dcons_os.c +++ b/sys/dev/dcons/dcons_os.c @@ -109,6 +109,8 @@ static cn_init_t dcons_cninit; static cn_term_t dcons_cnterm; static cn_getc_t dcons_cngetc; static cn_putc_t dcons_cnputc; +static cn_grab_t dcons_cngrab; +static cn_ungrab_t dcons_cnungrab; CONSOLE_DRIVER(dcons); @@ -246,6 +248,16 @@ dcons_cnterm(struct consdev *cp) { } +static void +dcons_cngrab(struct consdev *cp) +{ +} + +static void +dcons_cnungrab(struct consdev *cp) +{ +} + static int dcons_cngetc(struct consdev *cp) { |
