Hi Anil, Thanks for the reply. The pins AIN0 to AIN7 are signals right? Do they have pin mux? I'm sorry if this question is very vague.
Regards, Vijay -----Original Message----- From: Anil Kumar [mailto:[email protected]] Sent: Tuesday, February 12, 2013 7:10 PM To: Vijay S Cc: [email protected] Subject: Re: Reg:Trying to get the ADC working on the Beaglebone with 3.8 kernel Hi Vijay, On Tue, Feb 12, 2013 at 6:49 PM, Vijay S <[email protected]> wrote: > Hi, > > Am trying to get the ADC working on the beagle bone. Have cloned/pulled the > latest kernel from the following branch > https://github.com/beagleboard/kernel/tree/3.8 , applied the patches and > built the kernel. > > > > Have included the below structure under the am335x-bone-common.dtsi > (attached herewith is the dts file for your reference) > > > > tscadc@44e0d000 { > > status = "okay"; > > compatible = "ti,ti-tscadc"; > > reg = <0x44e0d000 0x1000>; > > interrupt-parent = <&intc>; > > interrupts = <16>; > > ti,hwmods = "adc_tsc"; > > }; > > > > &tscadc { > > tsc { > > ti,wires = <4>; > > ti,x-plate-resistance = <200>; > > ti,steps-to-configure = <5>; > > ti,wire-config = <0x00 0x11 0x22 0x33>; > > }; > > > > adc { > > ti,adc-channels = <8>; > > }; > have you done pin mux for this ? > > > > > The device is getting registered( [1.578678] input: ti-tsc as > /devices/ocp.2/44e0d000.tscadc/tsc/input/input0 > > [ 1.586799] tsc tsc: Initialized OK) as can be seen from the attached > kernel log(3.8_kernel_ts_adc_sys_iio_devices.txt). > > > > Am able to view the "tiadc" under the devices in the following path cat > /sys/devices/ocp.2/44e0d000.tscadc/tiadc/iio\:device0/ and cat > /sys/bus/iio/devices/iio\:device0/ , but am not able to list out > "in_voltageX_raw" in either of the paths. > > > > Can you please suggest if am missing anything? > > > > Regards, > > Vijay > > > > > _______________________________________________ > devicetree-discuss mailing list > [email protected] > https://lists.ozlabs.org/listinfo/devicetree-discuss > _______________________________________________ devicetree-discuss mailing list [email protected] https://lists.ozlabs.org/listinfo/devicetree-discuss
