[beagleboard] Re: How to enable all i2c
My experience is that the echo only works if you are logged on as root. it never worked with sudo for me. I found uEnv.txt at /boot/uEnv.txt For fear of opening a can of worms, the numbering of the three I2C buses is, for lack of a better term, illogical. From the aspect of an engineer, programmer or human -- especially someone new to BB and/or to embedded systems. debian@beaglebone:/$ ls /sys/class/i2c-dev/ -l total 0 lrwxrwxrwx 1 root root 0 Mar 3 19:03 i2c-0 - ../../devices/ocp.3/44e0b000.i2c/i2c-0/i2c-dev/i2c-0 lrwxrwxrwx 1 root root 0 Mar 3 19:03 i2c-1 - ../../devices/ocp.3/4819c000.i2c/i2c-1/i2c-dev/i2c-1 lrwxrwxrwx 1 root root 0 Mar 3 19:03 i2c-2 - ../../devices/ocp.3/4802a000.i2c/i2c-2/i2c-dev/i2c-2 so: i2c-0 is hardware bus 0 i2c-1 is hardware bus 2 i2c-2 is hardware bus 1 Both having to find and edit uEnv.txt and then having to deal with the mixed up numbering just doesn't make any sense to me... There you have it, my bias. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] Re: How to enable all i2c
My experience is that the echo only works if you are logged on as root. it never worked with sudo for me. I found uEnv.txt at /boot/uEnv.txt For fear of opening a can of worms, the numbering of the three I2C buses is, for lack of a better term, illogical. From the aspect of an engineer, programmer or human -- especially someone new to BB and/or to embedded systems. http://beaglebone.cameon.net/home/i2c-devices debian@beaglebone:/$ ls /sys/class/i2c-dev/ -ltotal 0 lrwxrwxrwx 1 root root 0 Mar 3 19:03 i2c-0 - ../../devices/ocp.3/44e0b000.i2c/i2c-0/i2c-dev/i2c-0 lrwxrwxrwx 1 root root 0 Mar 3 19:03 i2c-1 - ../../devices/ocp.3/4819c000.i2c/i2c-1/i2c-dev/i2c-1 lrwxrwxrwx 1 root root 0 Mar 3 19:03 i2c-2 - ../../devices/ocp.3/4802a000.i2c/i2c-2/i2c-dev/i2c-2 so: i2c-0 is hardware bus 0 i2c-1 is hardware bus 2 i2c-2 is hardware bus 1 Both having to find and edit uEnv.txt and then having to deal with the mixed up numbering just doesn't make any sense to me... There you have it, my bias. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Re: How to enable all i2c
I had the same problem (missing cape-manager ) in the newer kernel versions a few weeks ago. Needed to switch back to kernel 3.8.13 to get the cape-manager working. I haven't had time to investigate more. If you want to give it a try: sudo apt-get update sudo apt-get install linux-image-3.8.13-bone67 sudo reboot 2015-02-25 12:49 GMT+01:00 Lennart ohnenam der.d...@gmail.com: @Tux: (Man muss das Kind ja beim Namen nennen ;) ) I don't have the entire path. I'm missing the bone_capemgr.9 @Richard: I am using ubuntu on the Beagleboard xM. Any chance you know where to find it on this configuration? 2015-02-24 16:05 GMT+01:00 Richard-tx rich.andr...@gmail.com: I think that the issue stems from older versions of debian based linux and the newer version that use a device tree. If the echo statement fails then: To enable the I2c-1 on the BeagleBone Black Rev A, B and C: 1. Rev A/B: Open the file /media/BEAGLEBONE/uEnv.txt in an editor (vim/nano) 2. Rec C: Open the file /boot/uboot/uEnv.txt in an editor (vim/nano) 3. Add the key capemgr.enable_partno= 4. Add the ports you want to enable, comma separated (BB-I2C0, BB-I2C1, etc) 5. Reboot An example line looks like this: root@beaglebone:/dev# cat /media/BEAGLEBONE/uEnv.txt optargs=quiet drm.debug=7 capemgr.enable_partno=BB-I2C1 On Thursday, November 13, 2014 at 9:13:51 PM UTC-6, ngocta...@gmail.com wrote: I use I2C-Tools to detect the i2c like: root@android:/ # i2cdetect -l i2c-1 i2c OMAP I2C adapterI2C adapter i2c-3 i2c OMAP I2C adapterI2C adapter but in beablebone black(ver C), it has 3 i2c, so how to enable all. please give me some advices -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to a topic in the Google Groups BeagleBoard group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/beagleboard/xWr27ek18cs/unsubscribe. To unsubscribe from this group and all its topics, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Re: How to enable all i2c
Sounds interesting. I was able to change the i2c on the hardware. Just took a stiff cable to connect to the LCD Header of the BBxM, which has the i2c3 interface. If I downgrade the kernel I'm not sure whether all the other stuff on the Board still works. Is that made for the Beagleboard or would I have to worry? Thanks for the advice! 2015-02-25 21:19 GMT+01:00 Tux Leonard tuxl...@gmail.com: I had the same problem (missing cape-manager ) in the newer kernel versions a few weeks ago. Needed to switch back to kernel 3.8.13 to get the cape-manager working. I haven't had time to investigate more. If you want to give it a try: sudo apt-get update sudo apt-get install linux-image-3.8.13-bone67 sudo reboot 2015-02-25 12:49 GMT+01:00 Lennart ohnenam der.d...@gmail.com: @Tux: (Man muss das Kind ja beim Namen nennen ;) ) I don't have the entire path. I'm missing the bone_capemgr.9 @Richard: I am using ubuntu on the Beagleboard xM. Any chance you know where to find it on this configuration? 2015-02-24 16:05 GMT+01:00 Richard-tx rich.andr...@gmail.com: I think that the issue stems from older versions of debian based linux and the newer version that use a device tree. If the echo statement fails then: To enable the I2c-1 on the BeagleBone Black Rev A, B and C: 1. Rev A/B: Open the file /media/BEAGLEBONE/uEnv.txt in an editor (vim/nano) 2. Rec C: Open the file /boot/uboot/uEnv.txt in an editor (vim/nano) 3. Add the key capemgr.enable_partno= 4. Add the ports you want to enable, comma separated (BB-I2C0, BB-I2C1, etc) 5. Reboot An example line looks like this: root@beaglebone:/dev# cat /media/BEAGLEBONE/uEnv.txt optargs=quiet drm.debug=7 capemgr.enable_partno=BB-I2C1 On Thursday, November 13, 2014 at 9:13:51 PM UTC-6, ngocta...@gmail.com wrote: I use I2C-Tools to detect the i2c like: root@android:/ # i2cdetect -l i2c-1 i2c OMAP I2C adapterI2C adapter i2c-3 i2c OMAP I2C adapterI2C adapter but in beablebone black(ver C), it has 3 i2c, so how to enable all. please give me some advices -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to a topic in the Google Groups BeagleBoard group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/beagleboard/xWr27ek18cs/unsubscribe. To unsubscribe from this group and all its topics, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to a topic in the Google Groups BeagleBoard group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/beagleboard/xWr27ek18cs/unsubscribe. To unsubscribe from this group and all its topics, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Re: How to enable all i2c
@Tux: (Man muss das Kind ja beim Namen nennen ;) ) I don't have the entire path. I'm missing the bone_capemgr.9 @Richard: I am using ubuntu on the Beagleboard xM. Any chance you know where to find it on this configuration? 2015-02-24 16:05 GMT+01:00 Richard-tx rich.andr...@gmail.com: I think that the issue stems from older versions of debian based linux and the newer version that use a device tree. If the echo statement fails then: To enable the I2c-1 on the BeagleBone Black Rev A, B and C: 1. Rev A/B: Open the file /media/BEAGLEBONE/uEnv.txt in an editor (vim/nano) 2. Rec C: Open the file /boot/uboot/uEnv.txt in an editor (vim/nano) 3. Add the key capemgr.enable_partno= 4. Add the ports you want to enable, comma separated (BB-I2C0, BB-I2C1, etc) 5. Reboot An example line looks like this: root@beaglebone:/dev# cat /media/BEAGLEBONE/uEnv.txt optargs=quiet drm.debug=7 capemgr.enable_partno=BB-I2C1 On Thursday, November 13, 2014 at 9:13:51 PM UTC-6, ngocta...@gmail.com wrote: I use I2C-Tools to detect the i2c like: root@android:/ # i2cdetect -l i2c-1 i2c OMAP I2C adapterI2C adapter i2c-3 i2c OMAP I2C adapterI2C adapter but in beablebone black(ver C), it has 3 i2c, so how to enable all. please give me some advices -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to a topic in the Google Groups BeagleBoard group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/beagleboard/xWr27ek18cs/unsubscribe. To unsubscribe from this group and all its topics, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] Re: How to enable all i2c
I think that the issue stems from older versions of debian based linux and the newer version that use a device tree. If the echo statement fails then: To enable the I2c-1 on the BeagleBone Black Rev A, B and C: 1. Rev A/B: Open the file /media/BEAGLEBONE/uEnv.txt in an editor (vim/nano) 2. Rec C: Open the file /boot/uboot/uEnv.txt in an editor (vim/nano) 3. Add the key capemgr.enable_partno= 4. Add the ports you want to enable, comma separated (BB-I2C0, BB-I2C1, etc) 5. Reboot An example line looks like this: root@beaglebone:/dev# cat /media/BEAGLEBONE/uEnv.txt optargs=quiet drm.debug=7 capemgr.enable_partno=BB-I2C1 On Thursday, November 13, 2014 at 9:13:51 PM UTC-6, ngocta...@gmail.com wrote: I use I2C-Tools to detect the i2c like: root@android:/ # i2cdetect -l i2c-1 i2c OMAP I2C adapterI2C adapter i2c-3 i2c OMAP I2C adapterI2C adapter but in beablebone black(ver C), it has 3 i2c, so how to enable all. please give me some advices -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] Re: How to enable all i2c
I have the exact same problem and adding Richards recommended line to rc.local does nothing :( I need the i2c2 bus in order to use the i2c-bus that is connected to the main expansion header. Please, please help me! -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Re: How to enable all i2c
Hi der.depp (lustiger Name), is /sys/devices/bone_capemgr.9/ present in your file system? 2015-02-19 10:12 GMT+01:00 der.d...@gmail.com: I have the exact same problem and adding Richards recommended line to rc.local does nothing :( I need the i2c2 bus in order to use the i2c-bus that is connected to the main expansion header. Please, please help me! -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] Re: How to enable all i2c
add the following to rc.local echo BB-I2C1 /sys/devices/bone_capemgr.9/slots On Thursday, November 13, 2014 9:13:51 PM UTC-6, ngocta...@gmail.com wrote: I use I2C-Tools to detect the i2c like: root@android:/ # i2cdetect -l i2c-1 i2c OMAP I2C adapterI2C adapter i2c-3 i2c OMAP I2C adapterI2C adapter but in beablebone black(ver C), it has 3 i2c, so how to enable all. please give me some advices -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
