Re: [LAU] /dev/hpet is missing

>> For some reason, even though HPET is configured into this kernel,
>> /dev/hpet does not exist. Do I really need it, and if so, how do I fix it?
>>
> What does cat /proc/driver/rtc tell you?
>
> On my system it says HPET is emulated.
>

jeb@email-addr-hidden:~$ cat /proc/driver/rtc
rtc_time : 17:37:11
rtc_date : 2009-12-16
alrm_time : **:**:53
alrm_date : ****-**-**
alarm_IRQ : no
alrm_pending : no
24hr : yes
periodic_IRQ : no
update_IRQ : no
HPET_emulated : no
DST_enable : no
periodic_freq : 1024
batt_status : okay
jeb@email-addr-hidden:~$

Am rather curious now. I checked the .config of my kernel by a grep -i
hpet, and find:

CONFIG_HPET_TIMER=y
CONFIG_HPET_EMULATE_RTC=y
CONFIG_HPET=y
CONFIG_HPET_MMAP=y

Should CONFIG_HPET_EMULATE_RTC be set to n on a realtime kernel? Is
there something else which might invalidate CONFIG_HPET=y ?

J.E.B.
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Received on Thu Dec 17 04:15:02 2009