path: root/arch/um/Kconfig.char
diff options
Diffstat (limited to 'arch/um/Kconfig.char')
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/um/Kconfig.char b/arch/um/Kconfig.char
index e03e40c7aac..a5b079d5e86 100644
--- a/arch/um/Kconfig.char
+++ b/arch/um/Kconfig.char
@@ -146,6 +146,25 @@ config LEGACY_PTYS
security. This option enables these legacy devices; on most
systems, it is safe to say N.
+config RAW_DRIVER
+ tristate "RAW driver (/dev/raw/rawN) (OBSOLETE)"
+ help
+ The raw driver permits block devices to be bound to /dev/raw/rawN.
+ Once bound, I/O against /dev/raw/rawN uses efficient zero-copy I/O.
+ See the raw(8) manpage for more details.
+ The raw driver is deprecated and will be removed soon.
+ Applications should simply open the device (eg /dev/hda1)
+ with the O_DIRECT flag.
+config MAX_RAW_DEVS
+ int "Maximum number of RAW devices to support (1-8192)"
+ depends on RAW_DRIVER
+ default "256"
+ help
+ The maximum number of RAW devices that are supported.
+ Default is 256. Increase this number in case you need lots of
+ raw devices.
int "Maximum number of legacy PTY in use"