Hi John, looks like the kernel was not compiled for i2c device support, Marc reads the values directly from the /sys directory.
So to get the I2C sensor values just telnet to port 7147 and use ?list-sensors and ?sensor-value sensorname. Do you want to manipulate the i2c devices using the dev interface? If so we can look at adding support? Regards Alec On Fri, Jan 4, 2013 at 2:01 AM, John Ford <[email protected]> wrote: > > Hi John, you're running an old kernel. Please update as per instructions > > in > > the email titled: "Updating romfs and new tcpborphserver3" > > > > Let me know if you have any problems. > > Hi Alec. > > Well, I tried to follow those instructions, but I ran into a snag. First, > the kernel image in the repository is the same as the one I already have > as noted below. > > Second, I tried to update uboot as in the instructions, and I bricked 2 of > our roaches. The macro writeuboot seems to revert to the one in ROM > before being used by the 'run tftpuboot' step. I thought that I messed up > typing in the new macro, so I did it again on a second roach, and bricked > that one too. I am absolutely positive I entered enough 0s on the cp.b > step. I guess you have to save the environment before running the > tftpuboot step? Might as well make it a hat trick, I suppose, and try > another one. > > Do I need the romfs step if I'm using nfs? > > John > > > > > Regards > > Alec > > > > On Thu, Jan 3, 2013 at 5:46 AM, John Ford <[email protected]> wrote: > > > >> Hi all. Ive picked up where Glenn Jones left off on Dec 5th, working on > >> the iic for our R2 system, and I have got to where I think the driver's > >> missing or just not loaded. When I try to open the i2c-X devices, I get > >> : > >> root@vegasr2-1:/usr/local/etc# i2cdetect -r 0 > >> Error: Could not open file `/dev/i2c-0': No such device or address > >> > >> root@vegasr2-1:/usr/local/etc# i2cdetect -r 1 > >> Error: Could not open file `/dev/i2c-1': No such device or address > >> > >> The kernel config indicates that the chardev is built as a module, as > >> are > >> all the other I2C devices: > >> > >> CONFIG_I2C_CHARDEV=m > >> > >> But I can't find any modules. There are none in the usual /lib/modules > >> tree, and lsmod says there are no modules loaded. > >> > >> The system is: > >> > >> root@vegasr2-1:/bin# uname -a > >> Linux vegasr2-1 3.7.0-rc2+ #21 Mon Nov 19 09:30:32 SAST 2012 ppc > >> GNU/Linux > >> > >> Any idea where to go from here? > >> > >> John > >> > >> > >> > >> > > > > >
