[lm-sensors] [PATCH 1/3] watchdog_dev: Add support for having more then 1 watchdog

[Hans de Goede]

Hi,

On 05/04/2012 02:34 PM, Wim Van Sebroeck wrote:
> Hi Alan,
>
>>> You do this even for watchdog0 / for the watchdog we've also registered as
>>> misc_dev. I guess this is intentional and you want the watchdog to be
>>> available as both misc,130 as well as as MAJOR(dog_devt),0 ?
>>
>> Yes - so that it appears in the watchdog class in sysfs for example.
>
> What happens if one program opens the miscdevice and another program opens the MAJOR(dog_devt),0 device?
> I presume that the WDOG_DEV_OPEN status bit will prohibit the opening of the second device in that case...

Correct.

Regards,

Hans