[lkml]   [2011]   [Jul]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
Patch in this message
Subject[PATCH 1/2] Kconfig: Allow disabling of CONFIG_DEVPORT
It would be useful to build kernels with disabled support of /dev/port
for systems where we do not want to allow an administrator to access IO
ports directly.

To do so however, CONFIG_DEVPORT needs to be user-selectable. Give this
configuration option a name and help description.

Google-Bug-Id: 3177114
Signed-off-by: Mike Waychison <>
drivers/char/Kconfig | 7 ++++++-
1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 49502bc..12503f1 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -593,10 +593,15 @@ config TELCLOCK
controlling the behavior of this hardware.

config DEVPORT
- bool
+ bool "Support for /dev/port"
depends on !M68K
depends on ISA || PCI
default y
+ help
+ Enabling this option allows for access to the /dev/port
+ character device. This device maps IO ports onto a file
+ interface, so that users with sufficient privilege can read
+ and write to IO ports directly. If unsure, say yes.

source "drivers/s390/char/Kconfig"


 \ /
  Last update: 2011-07-14 22:37    [W:0.081 / U:21.292 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site