YAMAMOTO Takashi wrote:
>> kauth_authorize_device(cred, KAUTH_DEVICE_RAWIO_MEMORY,
>>     KAUTH_REQ_DEVICE_RAWIO_RW, 0 /* dev of /dev/{,k}mem..? */, NULL,
>>     NULL)
>>
>> kauth_authorize_device(cred, KAUTH_DEVICE_RAWIO_DISK,
>>     KAUTH_REQ_DEVICE_RAWIO_READ, dev, vp, NULL)
>>
>> kauth_authorize_device(cred, KAUTH_DEVICE_RAWIO_PASSTHRU,
>>     0, dev, some_command_data, NULL)
> 
> what's the last NULL argument for?

nothing, we can drop it. but the important bit is that with the above we
don't need a special passthru routine...

-e.

-- 
Elad Efrat