Re: [beagleboard] New DTO RSCM

2014-11-21 Thread Doug Edey 
I still want to be able to understand how to enable the ports and use one wire 
in the newer kernels. I can see the one wire driver being loaded on startup. 
But I cannot see /sys/devices/w1_devices

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[beagleboard] New DTO RSCM

2014-11-20 Thread Doug Edey 
So, I'm finding the Really Simple Cape Manager anything but simple... 

I made a Java DTO library that would use a JSON file 
(https://github.com/DougEdey/SB_Elsinore_Server/blob/master/extras/beaglebone.json)
 
to create Device Tree Overlays that could be applied easily.

This created files that could do basic GPIO exports, but I'm 
confused/concerned about how to do this for the new RSCM. There's no lines 
in the boneblack.dts 
(https://github.com/RobertCNelson/rscm/blob/master/3.13-bone/am335x-boneblack.dts)
 
that indicate which GPIO pins are which, and, much more concerningly to me, 
I have no idea how to enable OneWire like I used to, using this 
(https://github.com/DougEdey/SB_Elsinore_Server/blob/master/extras/w1.dts) 
source.

Am I missing something very fundamental? Like some documentation or 
instructions for how to use RSCM? I have a lot of users who want to use the 
BBB and I want to support the latest kernel images.

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Re: [beagleboard] New DTO RSCM

2014-11-20 Thread Doug Edey 
OK, I'm still unclear as to how my old dts for one wire:

/*
* Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Modified by Russell Senior from the weather cape's DTS file.
* Minor formatting by C W Rose.
*/
/dts-v1/;
/plugin/;
/ {
compatible = ti,beaglebone, ti,beaglebone-black;
part-number = BB-W1;
version = 00A0;
exclusive-use = P8.11;
fragment@0 {
target = am33xx_pinmux;
__overlay__ {
bb_w1_pins: pinmux_bb_w1_pins {
pinctrl-single,pins = 
0x34 0x37 /* gpmc_ad13.gpio1_13, OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE7 - 
w1-gpio */
;
};
};
};
fragment@1 {
target = ocp;
__overlay__ {
onewire@0 {
status = okay;
compatible = w1-gpio;
pinctrl-names = default;
pinctrl-0 = bb_w1_pins;
gpios = gpio2 13 0;
};
};
};
};


Would convert to the new dtsi, is there any documentation on the dtsi?

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Re: [beagleboard] New DTO RSCM

2014-11-20 Thread Doug Edey 
/3.14.22-ti-r31/am3517-evm.dtb'
'src/arm/am3517_mt_ventoux.dtb' - 
'/boot/dtbs/3.14.22-ti-r31/am3517_mt_ventoux.dtb'
'src/arm/am437x-gp-evm-hdmi.dtb' - 
'/boot/dtbs/3.14.22-ti-r31/am437x-gp-evm-hdmi.dtb'
'src/arm/am437x-gp-evm.dtb' - '/boot/dtbs/3.14.22-ti-r31/am437x-gp-evm.dtb'
'src/arm/am437x-sk-evm.dtb' - '/boot/dtbs/3.14.22-ti-r31/am437x-sk-evm.dtb'
'src/arm/am43x-epos-evm-hdmi.dtb' - 
'/boot/dtbs/3.14.22-ti-r31/am43x-epos-evm-hdmi.dtb'
'src/arm/am43x-epos-evm.dtb' - 
'/boot/dtbs/3.14.22-ti-r31/am43x-epos-evm.dtb'
'src/arm/am57xx-beagle-x15.dtb' - 
'/boot/dtbs/3.14.22-ti-r31/am57xx-beagle-x15.dtb'
'src/arm/dra7-evm-lcd10.dtb' - 
'/boot/dtbs/3.14.22-ti-r31/dra7-evm-lcd10.dtb'
'src/arm/dra7-evm-lcd7.dtb' - '/boot/dtbs/3.14.22-ti-r31/dra7-evm-lcd7.dtb'
'src/arm/dra7-evm.dtb' - '/boot/dtbs/3.14.22-ti-r31/dra7-evm.dtb'
'src/arm/dra72-evm-lcd10.dtb' - 
'/boot/dtbs/3.14.22-ti-r31/dra72-evm-lcd10.dtb'
'src/arm/dra72-evm-lcd7.dtb' - 
'/boot/dtbs/3.14.22-ti-r31/dra72-evm-lcd7.dtb'
'src/arm/dra72-evm.dtb' - '/boot/dtbs/3.14.22-ti-r31/dra72-evm.dtb'
'src/arm/k2hk-evm.dtb' - '/boot/dtbs/3.14.22-ti-r31/k2hk-evm.dtb'
'src/arm/omap3-beagle-xm.dtb' - 
'/boot/dtbs/3.14.22-ti-r31/omap3-beagle-xm.dtb'
'src/arm/omap3-beagle.dtb' - '/boot/dtbs/3.14.22-ti-r31/omap3-beagle.dtb'
'src/arm/omap3-cm-t3730.dtb' - 
'/boot/dtbs/3.14.22-ti-r31/omap3-cm-t3730.dtb'
'src/arm/omap3-devkit8000.dtb' - 
'/boot/dtbs/3.14.22-ti-r31/omap3-devkit8000.dtb'
'src/arm/omap3-evm-37xx.dtb' - 
'/boot/dtbs/3.14.22-ti-r31/omap3-evm-37xx.dtb'
'src/arm/omap3-evm.dtb' - '/boot/dtbs/3.14.22-ti-r31/omap3-evm.dtb'
'src/arm/omap3-gta04.dtb' - '/boot/dtbs/3.14.22-ti-r31/omap3-gta04.dtb'
'src/arm/omap3-igep0020.dtb' - 
'/boot/dtbs/3.14.22-ti-r31/omap3-igep0020.dtb'
'src/arm/omap3-igep0030.dtb' - 
'/boot/dtbs/3.14.22-ti-r31/omap3-igep0030.dtb'
'src/arm/omap3-ldp.dtb' - '/boot/dtbs/3.14.22-ti-r31/omap3-ldp.dtb'
'src/arm/omap3-n9.dtb' - '/boot/dtbs/3.14.22-ti-r31/omap3-n9.dtb'
'src/arm/omap3-n900.dtb' - '/boot/dtbs/3.14.22-ti-r31/omap3-n900.dtb'
'src/arm/omap3-n950.dtb' - '/boot/dtbs/3.14.22-ti-r31/omap3-n950.dtb'
'src/arm/omap3-overo-storm-tobi.dtb' - 
'/boot/dtbs/3.14.22-ti-r31/omap3-overo-storm-tobi.dtb'
'src/arm/omap3-overo-tobi.dtb' - 
'/boot/dtbs/3.14.22-ti-r31/omap3-overo-tobi.dtb'
'src/arm/omap3-sbc-t3730.dtb' - 
'/boot/dtbs/3.14.22-ti-r31/omap3-sbc-t3730.dtb'
'src/arm/omap3-zoom3.dtb' - '/boot/dtbs/3.14.22-ti-r31/omap3-zoom3.dtb'
'src/arm/omap3430-sdp.dtb' - '/boot/dtbs/3.14.22-ti-r31/omap3430-sdp.dtb'
'src/arm/omap4-panda-a4.dtb' - 
'/boot/dtbs/3.14.22-ti-r31/omap4-panda-a4.dtb'
'src/arm/omap4-panda-es.dtb' - 
'/boot/dtbs/3.14.22-ti-r31/omap4-panda-es.dtb'
'src/arm/omap4-panda.dtb' - '/boot/dtbs/3.14.22-ti-r31/omap4-panda.dtb'
'src/arm/omap4-sdp-es23plus.dtb' - 
'/boot/dtbs/3.14.22-ti-r31/omap4-sdp-es23plus.dtb'
'src/arm/omap4-sdp.dtb' - '/boot/dtbs/3.14.22-ti-r31/omap4-sdp.dtb'
'src/arm/omap4-var-som.dtb' - '/boot/dtbs/3.14.22-ti-r31/omap4-var-som.dtb'
'src/arm/omap5-uevm.dtb' - '/boot/dtbs/3.14.22-ti-r31/omap5-uevm.dtb'


Edited my uEnv.txt to:

#Docs: http://elinux.org/Beagleboard:U-boot_partitioning_layout_2.0

uname_r=3.14.22-ti-r31

dtb=am335x-boneblack.dtb

uuid=a9ecee33-898c-4ddb-a96c-461b113cc230

cmdline=quiet

##Example
#cape_disable=capemgr.disable_partno=
#cape_enable=capemgr.enable_partno=

##enable BBB: eMMC Flasher:
##make sure, these tools are installed: dosfstools rsync
#cmdline=init=/opt/scripts/tools/eMMC/init-eMMC-flasher-v3.sh




On Thursday, November 20, 2014 10:27:32 PM UTC-5, RobertCNelson wrote:

 On Thu, Nov 20, 2014 at 9:16 PM, Doug Edey doug...@gmail.com 
 javascript: wrote: 
  OK, I'm still unclear as to how my old dts for one wire: 
  
  /* 
  * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/ 
  * 
  * This program is free software; you can redistribute it and/or modify 
  * it under the terms of the GNU General Public License version 2 as 
  * published by the Free Software Foundation. 
  * 
  * Modified by Russell Senior from the weather cape's DTS file. 
  * Minor formatting by C W Rose. 
  */ 
  /dts-v1/; 
  /plugin/; 
  / { 
  compatible = ti,beaglebone, ti,beaglebone-black; 
  part-number = BB-W1; 
  version = 00A0; 
  exclusive-use = P8.11; 
  fragment@0 { 
  target = am33xx_pinmux; 
  __overlay__ { 
  bb_w1_pins: pinmux_bb_w1_pins { 
  pinctrl-single,pins =  
  0x34 0x37 /* gpmc_ad13.gpio1_13, OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE7 
 - 
  w1-gpio */ 
 ; 
  }; 
  }; 
  }; 
  fragment@1 { 
  target = ocp; 
  __overlay__ { 
  onewire@0 { 
  status = okay; 
  compatible = w1-gpio; 
  pinctrl-names = default; 
  pinctrl-0 = bb_w1_pins; 
  gpios = gpio2 13 0; 
  }; 
  }; 
  }; 
  }; 
  
  
  Would convert to the new dtsi, is there any documentation on the dtsi? 

 First test this: 

 http://pastebin.com/yDyaHKcS 

 If it works, i'll factor it into the patchset.. 

 make 
 sudo make install 

 Regards, 

 -- 
 Robert Nelson 
 http://www.rcn-ee.com/ 


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Re: [beagleboard] New DTO RSCM

2014-11-20 Thread Doug Edey 
The DTB doesn't match the hardware, it matches the kernel? That seems 
odd...

I ran those. commands, uEnv still points at am335-boneblack.dtb, but I 
don;t see any one wire devices, even though there is one connected in the 
same configuration as the old kernel 3.8 that used the previous DTB I 
pasted which was exported to the capemgr.

What was the reason for the change away from capemgr? capemgr seemed to 
work

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Re: [beagleboard] New DTO RSCM

2014-11-20 Thread Doug Edey 



 Then just: 

 sudo apt-get update 
 sudo apt-get install linux-image-3.8.13-bone67 
 sudo reboot 

 Running
 

  What was the reason for the change away from capemgr? capemgr seemed to 
  work 

 Search the list, it's been explained too often. 

Surely, as a fellow software dev, if you have to explain yourself a lot, 
there's an issue (I've worked on a lot of massive projects down to the low 
level, JVM - network management product for ISPs/larger) 

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Re: [beagleboard] New DTO RSCM

2014-11-20 Thread Doug Edey 


On Thursday, November 20, 2014 11:32:13 PM UTC-5, RobertCNelson wrote:

 On Thu, Nov 20, 2014 at 10:25 PM, Doug Edey doug...@gmail.com 
 javascript: wrote: 
  The DTB doesn't match the hardware, it matches the kernel? That 
 seems 
  odd... 
  
  I ran those. commands, uEnv still points at am335-boneblack.dtb, but I 
 don;t 
  see any one wire devices, even though there is one connected in the same 
  configuration as the old kernel 3.8 that used the previous DTB I pasted 
  which was exported to the capemgr. 

 Then just: 

 sudo apt-get update 
 sudo apt-get install linux-image-3.8.13-bone67 
 sudo reboot 


No, I want to support the changes you've made to kernel 3.13 running.  

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Re: [beagleboard] Boot failures with 2014-07-06 drops

2014-07-20 Thread Doug Edey 
 Wait, the boot button has to be pressed every single time it powers off 
and on? This isn't good at all, I have a cape on my board.




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[beagleboard] Re: (Resource temporarily unavailable)Error while reading ADC pins

2013-12-06 Thread Doug Edey 
Is there a reason why overreading causes the issue? I've noticed I can 
cause it by running a:

find /sys/devices -iname ain*

Which is really annoying!

On Friday, December 6, 2013 1:27:13 AM UTC-5, nax...@gmail.com wrote:

 The problem seems to arise when I am trying to access ADC continuously 
 without delay.
 When I tried to access ADC continuously, the Resource temporarily 
 unavailable error remained constant and I was not able to read ADC 
 unless I rebooted the system.

 If I give a delay after reading each ADC value,
 Occassionally I do get Resource temporarily unavailable error but it 
 just remains for a few seconds and I am able to read ADC again normally.

 On Monday, December 2, 2013 6:26:11 PM UTC+5:30, nax...@gmail.com wrote:

 I am getting resource temporary unavailable when I tried to read ADC pins 
 from BeagleBone Black

 root@beaglebone:~# cat /sys/devices/ocp.2/helper.11/AIN*
 cat: /sys/devices/ocp.2/helper.11/AIN0: Resource temporarily unavailable
 cat: /sys/devices/ocp.2/helper.11/AIN1: Resource temporarily unavailable
 cat: /sys/devices/ocp.2/helper.11/AIN2: Resource temporarily unavailable
 cat: /sys/devices/ocp.2/helper.11/AIN3: Resource temporarily unavailable
 cat: /sys/devices/ocp.2/helper.11/AIN4: Resource temporarily unavailable
 cat: /sys/devices/ocp.2/helper.11/AIN5: Resource temporarily unavailable
 cat: /sys/devices/ocp.2/helper.11/AIN6: Resource temporarily unavailable
 cat: /sys/devices/ocp.2/helper.11/AIN7: Resource temporarily unavailable

 What might be the reason for the error ?
 The ADC pins AIN0 to AIN5 are connected to thermistors and the actual 
 voltage at the ADC pins is around 0.77 volt



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[beagleboard] Re: Cape IIO Kernel NULL Pointer derefence

2013-12-06 Thread Doug Edey 
Ok, but how to I make the reading on the analogue inputs more reliable?

On Wednesday, December 4, 2013 2:32:06 AM UTC-5, Giuseppe Iellamo wrote:

 As others have noted here 


 https://groups.google.com/forum/#!category-topic/beagleboard/beaglebone-black/ZLSuKKM9Im4

 Unloading cape is a bit problematic... shortly don't expect it to work 
 reliably

 Il giorno mercoledì 4 dicembre 2013 01:41:47 UTC+1, Doug Edey ha scritto:

 Using Ubuntu 13.04 3.8.13-bone31

 After approximately five minutes AIN* values go to Resource Temporarily 
 Unavailable

 elsinore@brewery:~$ cat /sys/devices/ocp.2/helper.13/AIN*
 cat: /sys/devices/ocp.2/helper.13/AIN0: Resource temporarily unavailable
 cat: /sys/devices/ocp.2/helper.13/AIN1: Resource temporarily unavailable
 cat: /sys/devices/ocp.2/helper.13/AIN2: Resource temporarily unavailable
 cat: /sys/devices/ocp.2/helper.13/AIN3: Resource temporarily unavailable
 cat: /sys/devices/ocp.2/helper.13/AIN4: Resource temporarily unavailable
 cat: /sys/devices/ocp.2/helper.13/AIN5: Resource temporarily unavailable
 cat: /sys/devices/ocp.2/helper.13/AIN6: Resource temporarily unavailable
 cat: /sys/devices/ocp.2/helper.13/AIN7: Resource temporarily unavailable

 When I unload the cape:

 Dec  3 19:38:04 brewery kernel: [  873.063510] Unable to handle kernel 
 NULL pointer dereference at virtual address 001b
 Dec  3 19:38:04 brewery kernel: [  873.072312] pgd = df308000
 Dec  3 19:38:04 brewery kernel: [  873.075179] [001b] *pgd=9f475831, 
 *pte=, *ppte=
 Dec  3 19:38:04 brewery kernel: [  873.081805] Internal error: Oops: 17 
 [#1] SMP ARM
 Dec  3 19:38:04 brewery kernel: [  873.086721] Modules linked in: g_multi 
 libcomposite r8712u(C) hid_ntrig
 Dec  3 19:38:04 brewery kernel: [  873.093665] CPU: 0Tainted: G   
   C(3.8.13-bone31 #1)
 Dec  3 19:38:04 brewery kernel: [  873.099955] PC is at 
 omap_device_idle+0x10/0x54
 Dec  3 19:38:04 brewery kernel: [  873.104689] LR is at 
 _od_runtime_suspend+0x1c/0x24
 Dec  3 19:38:04 brewery kernel: [  873.109697] pc : [c00284e0]lr : 
 [c0028540]psr: a013
 Dec  3 19:38:04 brewery kernel: [  873.109697] sp : de5bbd68  ip : 
 df0484cc  fp : de155c18
 Dec  3 19:38:04 brewery kernel: [  873.121695] r10: de5bbda0  r9 : 
 c0059db0  r8 : 
 Dec  3 19:38:04 brewery kernel: [  873.127155] r7 : 6013  r6 : 
   r5 : df28f410  r4 : 
 Dec  3 19:38:04 brewery kernel: [  873.133976] r3 :   r2 : 
 000c000b  r1 : df28f480  r0 : df28f400
 Dec  3 19:38:04 brewery kernel: [  873.140800] Flags: NzCv  IRQs on  FIQs 
 on  Mode SVC_32  ISA ARM  Segment user
 Dec  3 19:38:04 brewery kernel: [  873.148256] Control: 10c5387d  Table: 
 9f308019  DAC: 0015
 Dec  3 19:38:04 brewery kernel: [  873.154260] Process bash (pid: 1491, 
 stack limit = 0xde5ba240)
 Dec  3 19:38:04 brewery kernel: [  873.160356] Stack: (0xde5bbd68 to 
 0xde5bc000)
 Dec  3 19:38:04 brewery kernel: [  873.182260] bd60:   
  c0028540  df28f410 c0028524 c038e278
 Dec  3 19:38:04 brewery kernel: [  873.199820] bd80: c094f4d8 df28f410 
  c038e7d8 6013 0001 0003 
 Dec  3 19:38:04 brewery kernel: [  873.215648] bda0: de664e00 fdf4 
 de5ba000 df28f410  df28f480 6013 00200200
 Dec  3 19:38:04 brewery kernel: [  873.227851] bdc0: c066a264 de623df8 
 de155c18 c038f684  df28f410 c0027984 0004
 Dec  3 19:38:04 brewery kernel: [  873.236519] bde0: 6013 c038ae38 
 df28f410 c038e278 c094f4d8 df28f410  c038ebb8
 Dec  3 19:38:04 brewery kernel: [  873.252565] be00: df28f51c df28f410 
 0004 df28f480 6013 c038ed10 c03943f4 df28f410
 Dec  3 19:38:04 brewery kernel: [  873.272087] be20: df7f9b10 c099be08 
  c039fbe8 c039fbbc df28f410 c099d194 c03878e0
 Dec  3 19:38:04 brewery kernel: [  873.287712] be40: c03878cc c03862d8 
 df578580 df28f444 df28f410 c038633c  df28f410
 Dec  3 19:38:04 brewery kernel: [  873.304292] be60: df04843c c0385e70 
 df28f410 df0b7200 df0b7210 c03840e8 df28f400 df0b7200
 Dec  3 19:38:04 brewery kernel: [  873.312980] be80:  c0387c58 
 df28f400 c0387e74 df47d680 c04d1bf8 002b df47d680
 Dec  3 19:38:04 brewery kernel: [  873.338590] bea0: de623dc0 de623df8 
 00100100 c04d1cc4 df578580  ffb0 de623dc8
 Dec  3 19:38:04 brewery kernel: [  873.361964] bec0: de623dc0 de623e10 
 db25f000 c04d2498 de39e410  df0d7c10 de00da58
 Dec  3 19:38:04 brewery kernel: [  873.381545] bee0: df0d7c10 c039c69c 
 0007 de155c20 0003 c039dca8  de00da58
 Dec  3 19:38:04 brewery kernel: [  873.394988] bf00: c09c05c0 c061992c 
    de157f48 de00da40 0003
 Dec  3 19:38:04 brewery kernel: [  873.404766] bf20: de00da58 de5bbf80 
 c066a264 df0d7c18  c0382ed0 0003 c014e684
 Dec  3 19:38:04 brewery kernel: [  873.424443] bf40: de333bc0 000ac408 
 0003 de5bbf80 000ac408 de5ba000 0003 c00f5474
 Dec  3 19:38:04 brewery kernel

[beagleboard] Re: Dallas 1-Wire BeagleBone Black

2013-12-04 Thread Doug Edey 
I've got 3 DS18B20 sensors on my bus at the moment, providing you've got 
the sensors running in non-parasitic mode, I think you'll be fine.

On Tuesday, December 3, 2013 8:13:31 PM UTC-5, lorena...@gmail.com wrote:

 Thinking of replacing the dedicated microcontroller that runs my house 
 with a BBB. Being able to read the existing 1-Wire network will be 
 critical. Currently have 12 18B20 sensors on one bus, need more. Can the 
 kernel module described here actually address and read multiple sensors on 
 the same bus? Can it search and retrieve addresses from unknown sensors? 

 I see people selling 8-port capes, as if maybe this is a simple one device 
 per bus routine...  Wouldn't help me! 

 As for the considerations of long buses, yes there was a learning curve. 
 I have both active pull-up and active pull-down, with careful source-end 
 termination. All cable is CAT-5, and all sensors are within 1m of a single 
 linear topology installation. In several cases the bus goes out one pair of 
 the CAT-5 to a distant sensor and comes back on another pair of the same 
 cable to continue to the next destination. Branching.in a star fashion is 
 death to 1-Wire. My current system works, reliably controlling serious 
 solar hot water and outdoor wood boiler operation that could blow off 
 expensive antifreeze fluid (a huge hassle to recharge) if anything 
 overheated. 

 Great long-bus reference:
 http://www.1wire.org/Files/Articles/1-Wire-Design%20Guide%20v1.0.pdf


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[beagleboard] Re: Any nice solution ot power 10x BeagleBone Black boards?

2013-12-04 Thread Doug Edey 
You'd be better off using the DC Plugs to power the Beagleboards, get a 
nice big brick and split the power out.

On Wednesday, December 4, 2013 6:32:11 AM UTC-5, ara...@gmail.com wrote:


 Hello,

 I have 10 beaglebone black boards and would like to put them nicely in 
 stack... I am looking for a PSU or a solution to power these boards. I 
 didn't found anything nice though. 

 I'm looking for a solution/recommendation now...
 1. Are there any kind of PowerPlug with adapter where I can put 10 wires 
 and feed it to boards?
 2. Or may be just to buy a USB Hub with 10 ports that has external power 
 supply and use it just to power the boards?


 I hope you've got what I'm looking for... :-) Let me know if it's still 
 unclear.

 thanks,
 Anton.


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[beagleboard] Re: (Resource temporarily unavailable)Error while reading ADC pins

2013-12-03 Thread doug . edey 
Does anyone have any help on this? I'm getting this too, using Ubuntu on 
the Beaglebone Black. I've upgrade to 3.8.13-bone31 (the only higher 
version is 3.12 but I can't get the cape to load)

I get some valid readings (for maybe a few minutes after I load the cape) 
then I get the resource temporarily unavailable, and there's nothing in the 
dmesg output to indicate an error :(


On Monday, December 2, 2013 7:56:11 AM UTC-5, nax...@gmail.com wrote:

 I am getting resource temporary unavailable when I tried to read ADC pins 
 from BeagleBone Black

 root@beaglebone:~# cat /sys/devices/ocp.2/helper.11/AIN*
 cat: /sys/devices/ocp.2/helper.11/AIN0: Resource temporarily unavailable
 cat: /sys/devices/ocp.2/helper.11/AIN1: Resource temporarily unavailable
 cat: /sys/devices/ocp.2/helper.11/AIN2: Resource temporarily unavailable
 cat: /sys/devices/ocp.2/helper.11/AIN3: Resource temporarily unavailable
 cat: /sys/devices/ocp.2/helper.11/AIN4: Resource temporarily unavailable
 cat: /sys/devices/ocp.2/helper.11/AIN5: Resource temporarily unavailable
 cat: /sys/devices/ocp.2/helper.11/AIN6: Resource temporarily unavailable
 cat: /sys/devices/ocp.2/helper.11/AIN7: Resource temporarily unavailable

 What might be the reason for the error ?
 The ADC pins AIN0 to AIN5 are connected to thermistors and the actual 
 voltage at the ADC pins is around 0.77 volt


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[beagleboard] Cape IIO Kernel NULL Pointer derefence

2013-12-03 Thread doug . edey 
Using Ubuntu 13.04 3.8.13-bone31

After approximately five minutes AIN* values go to Resource Temporarily 
Unavailable

elsinore@brewery:~$ cat /sys/devices/ocp.2/helper.13/AIN*
cat: /sys/devices/ocp.2/helper.13/AIN0: Resource temporarily unavailable
cat: /sys/devices/ocp.2/helper.13/AIN1: Resource temporarily unavailable
cat: /sys/devices/ocp.2/helper.13/AIN2: Resource temporarily unavailable
cat: /sys/devices/ocp.2/helper.13/AIN3: Resource temporarily unavailable
cat: /sys/devices/ocp.2/helper.13/AIN4: Resource temporarily unavailable
cat: /sys/devices/ocp.2/helper.13/AIN5: Resource temporarily unavailable
cat: /sys/devices/ocp.2/helper.13/AIN6: Resource temporarily unavailable
cat: /sys/devices/ocp.2/helper.13/AIN7: Resource temporarily unavailable

When I unload the cape:

Dec  3 19:38:04 brewery kernel: [  873.063510] Unable to handle kernel NULL 
pointer dereference at virtual address 001b
Dec  3 19:38:04 brewery kernel: [  873.072312] pgd = df308000
Dec  3 19:38:04 brewery kernel: [  873.075179] [001b] *pgd=9f475831, 
*pte=, *ppte=
Dec  3 19:38:04 brewery kernel: [  873.081805] Internal error: Oops: 17 
[#1] SMP ARM
Dec  3 19:38:04 brewery kernel: [  873.086721] Modules linked in: g_multi 
libcomposite r8712u(C) hid_ntrig
Dec  3 19:38:04 brewery kernel: [  873.093665] CPU: 0Tainted: G 
C(3.8.13-bone31 #1)
Dec  3 19:38:04 brewery kernel: [  873.099955] PC is at 
omap_device_idle+0x10/0x54
Dec  3 19:38:04 brewery kernel: [  873.104689] LR is at 
_od_runtime_suspend+0x1c/0x24
Dec  3 19:38:04 brewery kernel: [  873.109697] pc : [c00284e0]lr : 
[c0028540]psr: a013
Dec  3 19:38:04 brewery kernel: [  873.109697] sp : de5bbd68  ip : df0484cc 
 fp : de155c18
Dec  3 19:38:04 brewery kernel: [  873.121695] r10: de5bbda0  r9 : c0059db0 
 r8 : 
Dec  3 19:38:04 brewery kernel: [  873.127155] r7 : 6013  r6 :  
 r5 : df28f410  r4 : 
Dec  3 19:38:04 brewery kernel: [  873.133976] r3 :   r2 : 000c000b 
 r1 : df28f480  r0 : df28f400
Dec  3 19:38:04 brewery kernel: [  873.140800] Flags: NzCv  IRQs on  FIQs 
on  Mode SVC_32  ISA ARM  Segment user
Dec  3 19:38:04 brewery kernel: [  873.148256] Control: 10c5387d  Table: 
9f308019  DAC: 0015
Dec  3 19:38:04 brewery kernel: [  873.154260] Process bash (pid: 1491, 
stack limit = 0xde5ba240)
Dec  3 19:38:04 brewery kernel: [  873.160356] Stack: (0xde5bbd68 to 
0xde5bc000)
Dec  3 19:38:04 brewery kernel: [  873.182260] bd60:   
 c0028540  df28f410 c0028524 c038e278
Dec  3 19:38:04 brewery kernel: [  873.199820] bd80: c094f4d8 df28f410 
 c038e7d8 6013 0001 0003 
Dec  3 19:38:04 brewery kernel: [  873.215648] bda0: de664e00 fdf4 
de5ba000 df28f410  df28f480 6013 00200200
Dec  3 19:38:04 brewery kernel: [  873.227851] bdc0: c066a264 de623df8 
de155c18 c038f684  df28f410 c0027984 0004
Dec  3 19:38:04 brewery kernel: [  873.236519] bde0: 6013 c038ae38 
df28f410 c038e278 c094f4d8 df28f410  c038ebb8
Dec  3 19:38:04 brewery kernel: [  873.252565] be00: df28f51c df28f410 
0004 df28f480 6013 c038ed10 c03943f4 df28f410
Dec  3 19:38:04 brewery kernel: [  873.272087] be20: df7f9b10 c099be08 
 c039fbe8 c039fbbc df28f410 c099d194 c03878e0
Dec  3 19:38:04 brewery kernel: [  873.287712] be40: c03878cc c03862d8 
df578580 df28f444 df28f410 c038633c  df28f410
Dec  3 19:38:04 brewery kernel: [  873.304292] be60: df04843c c0385e70 
df28f410 df0b7200 df0b7210 c03840e8 df28f400 df0b7200
Dec  3 19:38:04 brewery kernel: [  873.312980] be80:  c0387c58 
df28f400 c0387e74 df47d680 c04d1bf8 002b df47d680
Dec  3 19:38:04 brewery kernel: [  873.338590] bea0: de623dc0 de623df8 
00100100 c04d1cc4 df578580  ffb0 de623dc8
Dec  3 19:38:04 brewery kernel: [  873.361964] bec0: de623dc0 de623e10 
db25f000 c04d2498 de39e410  df0d7c10 de00da58
Dec  3 19:38:04 brewery kernel: [  873.381545] bee0: df0d7c10 c039c69c 
0007 de155c20 0003 c039dca8  de00da58
Dec  3 19:38:04 brewery kernel: [  873.394988] bf00: c09c05c0 c061992c 
   de157f48 de00da40 0003
Dec  3 19:38:04 brewery kernel: [  873.404766] bf20: de00da58 de5bbf80 
c066a264 df0d7c18  c0382ed0 0003 c014e684
Dec  3 19:38:04 brewery kernel: [  873.424443] bf40: de333bc0 000ac408 
0003 de5bbf80 000ac408 de5ba000 0003 c00f5474
Dec  3 19:38:04 brewery kernel: [  873.440066] bf60: de333bc0 000ac408 
  de333bc0  000ac408 c00f5754
Dec  3 19:38:04 brewery kernel: [  873.461551] bf80:   
0003 0003 000ac408 b6f55a78 0004 c000da04
Dec  3 19:38:04 brewery kernel: [  873.477265] bfa0:  c000d880 
0003 000ac408 0001 000ac408 0003 
Dec  3 19:38:04 brewery kernel: [  873.487589] bfc0: 0003 000ac408 
b6f55a78 0004 0003  000a6094 
Dec  3 19:38:05 brewery kernel: [

[beagleboard] Re: (Resource temporarily unavailable)Error while reading ADC pins

2013-12-03 Thread Doug Edey 
] 
(pm_generic_runtime_idle+0x20/0x50)
Dec  3 19:38:05 brewery kernel: [  873.555037] [c038ae38] 
(pm_generic_runtime_idle+0x20/0x50) from [c038e278] 
(__rpm_callback+0x30/0x58)
Dec  3 19:38:05 brewery kernel: [  873.565084] [c038e278] 
(__rpm_callback+0x30/0x58) from [c038ebb8] (rpm_idle+0x180/0x228)
Dec  3 19:38:05 brewery kernel: [  873.573948] [c038ebb8] 
(rpm_idle+0x180/0x228) from [c038ed10] (__pm_runtime_idle+0x48/0x90)
Dec  3 19:38:05 brewery kernel: [  873.583100] [c038ed10] 
(__pm_runtime_idle+0x48/0x90) from [c039fbe8] (ti_tscadc_remove+0x2c/0x48)
Dec  3 19:38:05 brewery kernel: [  873.592795] [c039fbe8] 
(ti_tscadc_remove+0x2c/0x48) from [c03878e0] 
(platform_drv_remove+0x14/0x18)
Dec  3 19:38:05 brewery kernel: [  873.602663] [c03878e0] 
(platform_drv_remove+0x14/0x18) from [c03862d8] 
(__device_release_driver+0x7c/0xc4)
Dec  3 19:38:05 brewery kernel: [  873.613168] [c03862d8] 
(__device_release_driver+0x7c/0xc4) from [c038633c] 
(device_release_driver+0x1c/0x28)
Dec  3 19:38:05 brewery kernel: [  873.623852] [c038633c] 
(device_release_driver+0x1c/0x28) from [c0385e70] 
(bus_remove_device+0xc8/0xd8)
Dec  3 19:38:05 brewery kernel: [  873.633988] [c0385e70] 
(bus_remove_device+0xc8/0xd8) from [c03840e8] (device_del+0x108/0x16c)
Dec  3 19:38:05 brewery kernel: [  873.643308] [c03840e8] 
(device_del+0x108/0x16c) from [c0387c58] (platform_device_del+0x14/0x44)
Dec  3 19:38:05 brewery kernel: [  873.652810] [c0387c58] 
(platform_device_del+0x14/0x44) from [c0387e74] 
(platform_device_unregister+0xc/0x18)
Dec  3 19:38:05 brewery kernel: [  873.663510] [c0387e74] 
(platform_device_unregister+0xc/0x18) from [c04d1bf8] 
(of_overlay_device_entry_change.isra.0+0xe8/0x16c)
Dec  3 19:38:05 brewery kernel: [  873.675928] [c04d1bf8] 
(of_overlay_device_entry_change.isra.0+0xe8/0x16c) from [c04d1cc4] 
(of_overlay_revert_one+0x48/0x1e8)
Dec  3 19:38:05 brewery kernel: [  873.688069] [c04d1cc4] 
(of_overlay_revert_one+0x48/0x1e8) from [c04d2498] 
(of_overlay_revert+0x3c/0x60)
Dec  3 19:38:05 brewery kernel: [  873.698298] [c04d2498] 
(of_overlay_revert+0x3c/0x60) from [c039c69c] 
(bone_capemgr_remove_slot_no_lock+0x40/0xc8)
Dec  3 19:38:05 brewery kernel: [  873.709436] [c039c69c] 
(bone_capemgr_remove_slot_no_lock+0x40/0xc8) from [c039dca8] 
(slots_store+0x78/0x3b0)
Dec  3 19:38:05 brewery kernel: [  873.720118] [c039dca8] 
(slots_store+0x78/0x3b0) from [c0382ed0] (dev_attr_store+0x18/0x24)
Dec  3 19:38:05 brewery kernel: [  873.729170] [c0382ed0] 
(dev_attr_store+0x18/0x24) from [c014e684] (sysfs_write_file+0x100/0x148)
Dec  3 19:38:05 brewery kernel: [  873.738751] [c014e684] 
(sysfs_write_file+0x100/0x148) from [c00f5474] (vfs_write+0xa8/0x178)
Dec  3 19:38:05 brewery kernel: [  873.747963] [c00f5474] 
(vfs_write+0xa8/0x178) from [c00f5754] (sys_write+0x38/0x64)
Dec  3 19:38:05 brewery kernel: [  873.756362] [c00f5754] 
(sys_write+0x38/0x64) from [c000d880] (ret_fast_syscall+0x0/0x30)
Dec  3 19:38:05 brewery kernel: [  873.770224] Code: e350 e92d4010 
01a04000 159041c8 (e5d4301b)
Dec  3 19:38:05 brewery kernel: [  873.776680] ---[ end trace 
11c5dfaa4d81386f ]---

On Tuesday, December 3, 2013 7:24:54 PM UTC-5, Doug Edey wrote:

 Does anyone have any help on this? I'm getting this too, using Ubuntu on 
 the Beaglebone Black. I've upgrade to 3.8.13-bone31 (the only higher 
 version is 3.12 but I can't get the cape to load)

 I get some valid readings (for maybe a few minutes after I load the cape) 
 then I get the resource temporarily unavailable, and there's nothing in the 
 dmesg output to indicate an error :(


 On Monday, December 2, 2013 7:56:11 AM UTC-5, nax...@gmail.com wrote:

 I am getting resource temporary unavailable when I tried to read ADC pins 
 from BeagleBone Black

 root@beaglebone:~# cat /sys/devices/ocp.2/helper.11/AIN*
 cat: /sys/devices/ocp.2/helper.11/AIN0: Resource temporarily unavailable
 cat: /sys/devices/ocp.2/helper.11/AIN1: Resource temporarily unavailable
 cat: /sys/devices/ocp.2/helper.11/AIN2: Resource temporarily unavailable
 cat: /sys/devices/ocp.2/helper.11/AIN3: Resource temporarily unavailable
 cat: /sys/devices/ocp.2/helper.11/AIN4: Resource temporarily unavailable
 cat: /sys/devices/ocp.2/helper.11/AIN5: Resource temporarily unavailable
 cat: /sys/devices/ocp.2/helper.11/AIN6: Resource temporarily unavailable
 cat: /sys/devices/ocp.2/helper.11/AIN7: Resource temporarily unavailable

 What might be the reason for the error ?
 The ADC pins AIN0 to AIN5 are connected to thermistors and the actual 
 voltage at the ADC pins is around 0.77 volt



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