Now, when I hooked my first sensor up and tried to load the 1w-gpio driver, I get a:
I verified the wiring about 4 times, and I know I haven't had my coffee yet, but its only three wires ... Next I tried with the other sensor to see if it's a problem with the first, and same result. I have also verified that GPIO4 is working fine, by connecting 3.3 and GND to it and querying the pin.modprobe: ERROR: could not insert 'w1_gpio': No such device
I am using a Gentoo Linux build, and the kernel I have is a pretty recent 3.6.y (more recent than the last 1wire check-in to the 3.6.y tree on github). 3.6.11-cutdown-g5cb7d0b to be exact.
So is there anything I can do to troubleshoot further? I'd doubt that both devices arrived DOA. Is the occidentalis kernel patching the 1wire kernel drivers? Can I manually bitbang the GPIO4 to verify the device is 'seen' ? I'd guess no on the latter due to the timing of 1wire protocol... I have access to a scope if there is anything to see on the data pin that could help?
Cheers