Alexander:
On Fri, Sep 25, 2009 at 10:49 AM, Jon Ringle <jon@xxxxxxxxxx> wrote:
> However, it still does not work with your patch. In the dump below I see:
> [ 0.250000] i2c-core: driver [dummy] registered
> ...
> [ 0.290000] i2c-adapter i2c-0: adapter [IOP3xx-I2C] registered
> ...
> [ 3.780000] i2c-core: driver [rtc-m41t80] registered
[Note: missing i2c-adapter i2c-0 debug msgs expected when rtc-m41t80 probe]
> [ 3.790000] i2c /dev entries driver
> [ 3.790000] i2c-core: driver [dev_driver] registered
> [ 3.800000] i2c-dev: adapter [IOP3xx-I2C] registered as minor 0
> [ 3.800000] i2c-core: driver [lm75] registered
> [ 3.830000] i2c-adapter i2c-0: found normal entry for adapter 0, addr 0x48
> ...
> [ 4.050000] drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
I think the problem is that rtc-m41t80 does not provide either of the following:
struct i2c_driver: detect and address_data (both are null)
as required by i2c_detect()
-> called by __attach_adapter()
-> called by i2c_register_driver()
-> called by i2c_add_driver()
-> called by m41t80_rtc_init()
*or*
struct i2c_driver: attach_adapter (null)
as required by __attach_adapter()
-> called by i2c_register_driver()
-> called by i2c_add_driver()
-> called by m41t80_rtc_init()
Jon
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