IOError: [Errno 2] No such file or directory: '/slots'.

[Rohi23]

Hello ,

I am new to beagle bone.
I am trying to run pwm program. But getting
IOError: [Errno 2] No such file or directory: '/slots'.

Below is the program .

import Adafruit_BBIO.PWM as PWM
#PWM.start(channel, duty, freq=2000, polarity=0)
PWM.start("P9_14", 50)

PWM.set_duty_cycle("P9_14", 25.5)
PWM.set_frequency("P9_14", 10)
PWM.stop("P9_14")
PWM.cleanup()

When i run getting below error.

File "pwm.py", line 5, in
PWM.set_duty_cycle("P9_14", 25.5)
IOError: [Errno 2] No such file or directory: '/slots'

Please advice.

[RobertCNelson]

@Rohi23 please run:

sudo /opt/scripts/tools/version.sh

@pdp7 with later u-boot and kernel combinations, the "slots" file is now disabled when running u-boot overlays. (this was changed to stop users from echoing into "slots" and locking up the system)..

So the "bone_capemgr" directory is still there:

/sys/devices/platform/bone_capemgr/

While this file only exists if the old "kernel" overlays method is active (non-u-boot-overlays)

/sys/devices/platform/bone_capemgr/slots

Regards,

[pdp7]

Thanks @RobertCNelson. I believe I addressed that in #147 (f811062)

@Rohi23 if /opt/scripts/tools/version.sh does not exist, then please paste the output of these two commands:

uname -a

cat /etc/dogtag

[Rohi23]

Hi pdp7.

Not able to execute
sudo /opt/scripts/tools/version.sh

Below is the output.

root@beaglebone:# uname -a
Linux beaglebone 4.4.9-ti-r25 #1 SMP Thu May 5 23:08:13 UTC 2016 armv7l GNU/Linu x
root@beaglebone:# cat /etc/dogtag
BeagleBoard.org Debian Image 2016-05-13
root@beaglebone:~#

[pdp7]

@Rohi23 that 2016-05-13 image is a bit old at this point. Please download the latest image (Debian 9.1 2017-09-21 4GB SD IoT image) from http://beagleboard.org/latest-images

[pdp7]

@Rohi23 are you still having an issue? Please let me know. Thanks.

[pdp7]

@Rohi23 can I close this issue?

[pdp7]

@Rohi23 please reopen if still an issue

[ravinderreddy429]

hi,

I am working with the BBB, i would like to Enable SPI in BBB to connect SPI based timer PCF2129

I am getting the error below

debian@beaglebone:$ cat /sys/devices/platform/bone_capemgr/slots
cat: /sys/devices/platform/bone_capemgr/slots: No such file or directory
debian@beaglebone:$ sudo /opt/scripts/tools/version.sh
[sudo] password for debian:
git:/opt/scripts/:[d36fe9a7be9ebfc872b10a470e904ab4c61c4516]
eeprom:[A335BNLT000C1633BBBG0061]
dogtag:[BeagleBoard.org Debian Image 2017-10-10]
bootloader:[microSD-(push-button)]:[/dev/mmcblk0]:[U-Boot 2017.09-00002-g0f3f1c7907]
bootloader:[eMMC-(default)]:[/dev/mmcblk1]:[U-Boot 2017.09-00002-g0f3f1c7907]
kernel:[4.4.91-ti-r133]
nodejs:[v6.11.4]
uboot_overlay_options:[enable_uboot_overlays=1]
uboot_overlay_options:[uboot_overlay_pru=/lib/firmware/AM335X-PRU-RPROC-4-4-TI-00A0.dtbo]
uboot_overlay_options:[enable_uboot_cape_universal=1]
pkg:[bb-cape-overlays]:[4.4.20171009.0-0rcnee1stretch+20171009]
pkg:[bb-wl18xx-firmware]:[1.20170829-0rcnee1stretch+20170829]
pkg:[firmware-ti-connectivity]:[20170823-1rcnee0stretch+20170830]
debian@beaglebone:$ cat /sys/devices/platform/bone_capemgr/slots
cat: /sys/devices/platform/bone_capemgr/slots: No such file or directory
debian@beaglebone:$ uname -a
Linux beaglebone 4.4.91-ti-r133 #1 SMP Tue Oct 10 05:18:08 UTC 2017 armv7l GNU/Linux
debian@beaglebone:$ cat /etc/dogtag
BeagleBoard.org Debian Image 2017-10-10

what can be th solution for this......

Regards,
Ravinderreddy

[RobertCNelson]

@ravinderreddy429

add your cape overlay to /boot/uEnv.txt with:

https://elinux.org/Beagleboard:BeagleBoneBlack_Debian#U-Boot_Override_external_capes

regards,

[NagarjunaReddy1242]

i got one problem
cat /sys/devices/platform/bone_capemgr/slots its giving error as no such directory/file
can you please solve this error

[shantnavagarwal]

@NagarjunaReddy1242
open uEnv.txt /boot directory and comment out the line "enable_uboot_overlays=1"
It should look like this : "#enable_uboot_overlays=1"
This worked for me in Debian 9.2 IoT

[NagarjunaReddy1242]

hi Shantnav Agarwal i was try what your said but it is not slove. is there any other solution

…

On Tue, Dec 19, 2017 at 7:17 PM, Shantnav Agarwal ***@***.***> wrote: @NagarjunaReddy1242 <https://github.com/nagarjunareddy1242> open uEnv.txt /boot directory and comment out the line "enable_uboot_overlays=1" It should look like this : "#enable_uboot_overlays=1" This worked for me in Debian 9.2 IoT — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#167 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AXlWvCcF6uV0wpaZIwIMrPAbnj0Uq0q-ks5tB75ogaJpZM4PqVdS> .

[NagarjunaReddy1242]

same error iam getting On Wed, Dec 20, 2017 at 11:18 AM, Nagarjuna Reddy <nagarjuna1242@gmail.com> wrote:

…

hi Shantnav Agarwal i was try what your said but it is not slove. is there any other solution On Tue, Dec 19, 2017 at 7:17 PM, Shantnav Agarwal < ***@***.***> wrote: > @NagarjunaReddy1242 <https://github.com/nagarjunareddy1242> > open uEnv.txt /boot directory and comment out the line > "enable_uboot_overlays=1" > It should look like this : "#enable_uboot_overlays=1" > This worked for me in Debian 9.2 IoT > > — > You are receiving this because you were mentioned. > Reply to this email directly, view it on GitHub > <#167 (comment)>, > or mute the thread > <https://github.com/notifications/unsubscribe-auth/AXlWvCcF6uV0wpaZIwIMrPAbnj0Uq0q-ks5tB75ogaJpZM4PqVdS> > . >

[ghost]

uncommenting enable_uboot_overlays=1
in /boot/uEnv.txt
allowed me to get SPIDEV's /dev/spidev1.0 working on a BEAGLEBONE BLACK on DEBIAN 9 - this is probably very essential if you are trying to run flashrom to install LIBREBOOT, for example

[salahgafoor]

Hi,

Please reopen this thread, if closed.

I want to configure some of my gpio pins (P8_07 to P8_10) of my beagle bone black revC board as inputs with active high state.

OS running in my board is Debian 9.3, with Kernel 4.1.

Thanks in advance!

[amirbenayed]

I dont find the file bone_capemgr in /sys/devices/platform/