[lm-sensors] code question on pc87360 module

[lm-sensors] code question on pc87360 module

[Jim Cromie]

folks,

Im working on a gpio driver for pc87366, and having trouble
writing to the pins - reading is fine - im seeing what I expect,
and can read results of touching pins to ground (theyre pulled hi when open)

So im trying to grok what Im missing by looking at pc87360,
particularly, I was looking for ioremap() calls that might explain the 
no-write
to 0x6600-2f (SIO writes work).

soekris:~# modprobe pc87360
pc87360: Device 0x09 not activated
pc87360 0-6620: VLM conversion set to1s period, 160us delay
soekris:~#
soekris:~# more /proc/ioports |grep pc87360
6620-662f : pc87360
6640-664f : pc87360

the last 2 lines arent there until modprobed, but I cant find where/how 
they're
inserted - I grepped all i2c code for an ioremap, theyre all in i2c/busses/,
none of which appear to match these modules, or the objects which 
comprise them.

i2c_sensor              4480  1 pc87360
i2c_isa                 2304  0
i2c_core               23696  3 pc87360,i2c_sensor,i2c_isa

anybody got a clue for the needy ?

[lm-sensors] code question on pc87360 module

[Jean Delvare]

Hi Jim,

> soekris:~# more /proc/ioports |grep pc87360
> 6620-662f : pc87360
> 6640-664f : pc87360
> 
> the last 2 lines arent there until modprobed, but I cant find
> where/how they're inserted - I grepped all i2c code for an
> ioremap, they're all in i2c/busses/, none of which appear to
> match these modules, or the objects which comprise them.
> 
> i2c_sensor              4480  1 pc87360
> i2c_isa                 2304  0
> i2c_core               23696  3 pc87360,i2c_sensor,i2c_isa
> 
> anybody got a clue for the needy ?

Search for request_region()/release_region() in pc87360.c.

-- 
Jean Delvare

[lm-sensors] code question on pc87360 module

[Jim Cromie]

Jean Delvare wrote:

>Hi Jim,
>
>  
>
>>soekris:~# more /proc/ioports |grep pc87360
>>6620-662f : pc87360
>>6640-664f : pc87360
>>
>>the last 2 lines arent there until modprobed, but I cant find
>>where/how they're inserted - I grepped all i2c code for an
>>ioremap, they're all in i2c/busses/, none of which appear to
>>match these modules, or the objects which comprise them.
>>
>>i2c_sensor              4480  1 pc87360
>>i2c_isa                 2304  0
>>i2c_core               23696  3 pc87360,i2c_sensor,i2c_isa
>>
>>anybody got a clue for the needy ?
>>    
>>
>
>Search for request_region()/release_region() in pc87360.c.
>
>  
>
thanks.

Got it working. Now writes pins (problem was not reservation related)
Patch-set attached, comments welcome.
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