Am 10.02.2015 um 22:39 schrieb Colin Reese:
> Wait, is that even possible? I thought w1 was for bitbanging on a GPIO,
> having nothing to do with i2c.
>
There are w1 kernel drivers for ds2482, ds2490, bitbanging on a GPIO and
the synthesizeable ds1wm bus master.
CONFIG_W1_MASTER_DS2490=m
CONFIG_W1_MASTER_DS2482=m
CONFIG_W1_MASTER_DS1WM=m
CONFIG_W1_MASTER_GPIO=m
Like the ds2490 kernel driver is the usual troublemaker when using the
DS9490R adaptor on a normal PC, the ds2482 driver seems to be its
replacement on the raspberry.
Always mind the kernel driver, the given error description (bus present
but no devices, or devices coming and going) are the most likely error
mode when two drivers are "sharing" the same host adaptor.
Kind regards
Jan
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