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authorBob Ham <bob.ham@collabora.com>2016-06-03 12:13:07 +0100
committerHerbert Xu <herbert@gondor.apana.org.au>2016-06-07 18:42:43 +0800
commitd3ede2dba3d800912523838a6db35d562e042101 (patch)
tree26515af1b6fb2c1fd4b6087729774d1acb826ca5
parent63044c4fd49f9e2ce8ee9c5ca24afe6ebbb9fb46 (diff)
hwrng: chaoskey - Add support for Araneus Alea I USB RNG
Adds support for the Araneus Alea I USB hardware Random Number Generator which is interfaced with in exactly the same way as the Altus Metrum ChaosKey. We just add the appropriate device ID and modify the config help text. Signed-off-by: Bob Ham <bob.ham@collabora.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
-rw-r--r--drivers/usb/misc/Kconfig11
-rw-r--r--drivers/usb/misc/chaoskey.c4
2 files changed, 10 insertions, 5 deletions
diff --git a/drivers/usb/misc/Kconfig b/drivers/usb/misc/Kconfig
index e9e5ae5..6e70597 100644
--- a/drivers/usb/misc/Kconfig
+++ b/drivers/usb/misc/Kconfig
@@ -260,11 +260,12 @@ config USB_CHAOSKEY
tristate "ChaosKey random number generator driver support"
depends on HW_RANDOM
help
- Say Y here if you want to connect an AltusMetrum ChaosKey to
- your computer's USB port. The ChaosKey is a hardware random
- number generator which hooks into the kernel entropy pool to
- ensure a large supply of entropy for /dev/random and
- /dev/urandom and also provides direct access via /dev/chaoskeyX
+ Say Y here if you want to connect an AltusMetrum ChaosKey or
+ Araneus Alea I to your computer's USB port. These devices
+ are hardware random number generators which hook into the
+ kernel entropy pool to ensure a large supply of entropy for
+ /dev/random and /dev/urandom and also provides direct access
+ via /dev/chaoskeyX
To compile this driver as a module, choose M here: the
module will be called chaoskey.
diff --git a/drivers/usb/misc/chaoskey.c b/drivers/usb/misc/chaoskey.c
index 76350e4..9aef46b 100644
--- a/drivers/usb/misc/chaoskey.c
+++ b/drivers/usb/misc/chaoskey.c
@@ -55,6 +55,9 @@ MODULE_LICENSE("GPL");
#define CHAOSKEY_VENDOR_ID 0x1d50 /* OpenMoko */
#define CHAOSKEY_PRODUCT_ID 0x60c6 /* ChaosKey */
+#define ALEA_VENDOR_ID 0x12d8 /* Araneus */
+#define ALEA_PRODUCT_ID 0x0001 /* Alea I */
+
#define CHAOSKEY_BUF_LEN 64 /* max size of USB full speed packet */
#define NAK_TIMEOUT (HZ) /* stall/wait timeout for device */
@@ -69,6 +72,7 @@ MODULE_LICENSE("GPL");
static const struct usb_device_id chaoskey_table[] = {
{ USB_DEVICE(CHAOSKEY_VENDOR_ID, CHAOSKEY_PRODUCT_ID) },
+ { USB_DEVICE(ALEA_VENDOR_ID, ALEA_PRODUCT_ID) },
{ },
};
MODULE_DEVICE_TABLE(usb, chaoskey_table);