linux/drivers/net/wireless/ath/carl9170/Kconfig
Christian Lamparter 00044f17af carl9170: export HW random number generator
All AR9170 hardware have a 16-Bit random number generator.
The documentation claims the values are suitable for
"security keys".

The "throughput" is around 320Kibit/s. It's slow, but it
does work without introducing any special offload
firmware commands.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:41:42 -04:00

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config CARL9170
tristate "Linux Community AR9170 802.11n USB support"
depends on USB && MAC80211 && EXPERIMENTAL
select FW_LOADER
select CRC32
help
This is another driver for the Atheros "otus" 802.11n USB devices.
This driver provides more features than the original,
but it needs a special firmware (carl9170-1.fw) to do that.
The firmware can be downloaded from our wiki here:
<http://wireless.kernel.org/en/users/Drivers/carl9170>
If you choose to build a module, it'll be called carl9170.
config CARL9170_LEDS
bool "SoftLED Support"
depends on CARL9170
select MAC80211_LEDS
select LEDS_CLASS
select NEW_LEDS
default y
help
This option is necessary, if you want your device' LEDs to blink
Say Y, unless you need the LEDs for firmware debugging.
config CARL9170_DEBUGFS
bool "DebugFS Support"
depends on CARL9170 && DEBUG_FS && MAC80211_DEBUGFS
default n
help
Export several driver and device internals to user space.
Say N.
config CARL9170_WPC
bool
depends on CARL9170 && (INPUT = y || INPUT = CARL9170)
default y
config CARL9170_HWRNG
bool "Random number generator"
depends on CARL9170 && (HW_RANDOM = y || HW_RANDOM = CARL9170)
default n
help
Provides a hardware random number generator to the kernel.
SECURITY WARNING: It's relatively easy to eavesdrop all
generated random numbers from the transport stream with
usbmon [software] or special usb sniffer hardware.
Say N, unless your setup[i.e.: embedded system] has no
other rng source and you can afford to take the risk.