[PATCH 1/2] Allow hvc tty's to pose as vt's
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From: Soren Hansen on 14 May 2010 12:30 Allow for hvc based tty's to take over the vt driver's major number and namespace. Signed-off-by: Soren Hansen <soren(a)linux2go.dk> Tested-By: Major Hayden <major.hayden(a)rackspace.com> --- drivers/char/Kconfig | 9 ++++++++- drivers/char/hvc_console.c | 9 +++++++++ 2 files changed, 17 insertions(+), 1 deletions(-) diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig index 6aad99e..8610179 100644 --- a/drivers/char/Kconfig +++ b/drivers/char/Kconfig @@ -5,7 +5,7 @@ menu "Character devices" config VT - bool "Virtual terminal" if EMBEDDED + bool "Virtual terminal" depends on !S390 select INPUT default y @@ -602,6 +602,13 @@ config PPDEV If unsure, say N. +config HVC_TTY_HACK + bool "Apply various hacks to make hvc[0-] pretend to be tty[1-]" + depends on !VT + help + Make unsuspecting guests work happily with the hvc concoles by + tricking them into thinking they're plain old ttys. + config HVC_DRIVER bool help diff --git a/drivers/char/hvc_console.c b/drivers/char/hvc_console.c index a632f25..4c6b03d 100644 --- a/drivers/char/hvc_console.c +++ b/drivers/char/hvc_console.c @@ -43,7 +43,11 @@ #include "hvc_console.h" +#ifdef CONFIG_HVC_TTY_HACK +#define HVC_MAJOR 4 +#else /* CONFIG_HVC_TTY_HACK */ #define HVC_MAJOR 229 +#endif /* CONFIG_HVC_TTY_HACK */ #define HVC_MINOR 0 /* @@ -848,7 +852,12 @@ static int hvc_init(void) drv->owner = THIS_MODULE; drv->driver_name = "hvc"; +#ifdef CONFIG_HVC_TTY_HACK + drv->name = "tty"; + drv->name_base = 1; +#else /* CONFIG_HVC_TTY_HACK */ drv->name = "hvc"; +#endif /* CONFIG_HVC_TTY_HACK */ drv->major = HVC_MAJOR; drv->minor_start = HVC_MINOR; drv->type = TTY_DRIVER_TYPE_SYSTEM; -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |