diff options
Diffstat (limited to 'drivers/char/Kconfig')
-rw-r--r-- | drivers/char/Kconfig | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig index a4af8221751e..b96a3a5bcba3 100644 --- a/drivers/char/Kconfig +++ b/drivers/char/Kconfig @@ -7,13 +7,17 @@ menu "Character devices" source "drivers/tty/Kconfig" config DEVMEM - bool "/dev/mem virtual device support" + bool "Memory device driver" default y help - Say Y here if you want to support the /dev/mem device. - The /dev/mem device is used to access areas of physical - memory. - When in doubt, say "Y". + The memory driver provides two character devices, mem and kmem, which + provide access to the system's memory. The mem device is a view of + physical memory, and each byte in the device corresponds to the + matching physical address. The kmem device is the same as mem, but + the addresses correspond to the kernel's virtual address space rather + than physical memory. These devices are standard parts of a Linux + system and most users should say Y here. You might say N if very + security conscience or memory is tight. config DEVKMEM bool "/dev/kmem virtual device support" @@ -588,6 +592,10 @@ config DEVPORT depends on ISA || PCI default y +config DCC_TTY + tristate "DCC tty driver" + depends on ARM + source "drivers/s390/char/Kconfig" config MSM_SMD_PKT |