Comment 5 for bug 1229658

Thanks， I will check ARM Versatile Express codes. Why move the folder
to /sys/kernel/debug/.

On Tue, Sep 24, 2013 at 7:46 PM, Botao Sun <email address hidden> wrote:
> on ARM Versatile Express A9 board with Linaro Android image:
>
> https://android-build.linaro.org/builds/~linaro-android/vexpress-
> linaro-13.09-release/#build=6
>
> For files under path "/sys/class", it shows as:
>
> root@vexpress:/sys/class # ls -la
> drwxr-xr-x root root 2013-09-24 11:39 bdi
> drwxr-xr-x root root 2013-09-24 11:39 block
> drwxr-xr-x root root 2013-09-24 11:39 bsg
> drwxr-xr-x root root 2013-09-24 11:39 firmware
> drwxr-xr-x root root 2013-09-24 11:39 graphics
> drwxr-xr-x root root 2013-09-24 11:39 hwmon
> drwxr-xr-x root root 2013-09-24 11:39 input
> drwxr-xr-x root root 2013-09-24 11:39 leds
> drwxr-xr-x root root 2013-09-24 11:39 mdio_bus
> drwxr-xr-x root root 2013-09-24 11:39 mem
> drwxr-xr-x root root 2013-09-24 11:39 misc
> drwxr-xr-x root root 2013-09-24 11:39 mmc_host
> drwxr-xr-x root root 2013-09-24 11:39 mtd
> drwxr-xr-x root root 2013-09-24 11:39 net
> drwxr-xr-x root root 2013-09-24 11:39 power_supply
> drwxr-xr-x root root 2013-09-24 11:39 regulator
> drwxr-xr-x root root 2013-09-24 11:39 rtc
> drwxr-xr-x root root 2013-09-24 11:39 scsi_device
> drwxr-xr-x root root 2013-09-24 11:39 scsi_disk
> drwxr-xr-x root root 2013-09-24 11:39 scsi_host
> drwxr-xr-x root root 2013-09-24 11:39 sound
> drwxr-xr-x root root 2013-09-24 11:39 switch
> drwxr-xr-x root root 2013-09-24 11:39 timed_output
> drwxr-xr-x root root 2013-09-24 11:39 tty
> drwxr-xr-x root root 2013-09-24 11:39 vc
> drwxr-xr-x root root 2013-09-24 11:39 vtconsole
> root@vexpress:/sys/class #
>
> There is no "gpio" directory there. However, I found file "gpio" under
> the path "/sys/kernel/debug"
>
> /sys/kernel/debug/gpio
>
> And the content of this file shows:
>
> GPIOs 0-10, platform/10000000.sysreg, vexpress-sysreg:
> gpio-0 (mmci-pl18x (cd) ) in hi
> gpio-1 (mmci-pl18x (wp) ) in lo
> gpio-3 (v2m:green:user1 ) out lo
> gpio-4 (v2m:green:user2 ) out lo
> gpio-5 (v2m:green:user3 ) out lo
> gpio-6 (v2m:green:user4 ) out lo
> gpio-7 (v2m:green:user5 ) out lo
> gpio-8 (v2m:green:user6 ) out hi
> gpio-9 (v2m:green:user7 ) out lo
> gpio-10 (v2m:green:user8 ) out lo
>
> --
> You received this bug notification because you are a bug assignee.
> https://bugs.launchpad.net/bugs/1229658
>
> Title:
> Information is unavailable on "Clocks" & "Gpio" pages in powerdebug
> 0.7.1
>
> Status in Powerdebug - a tool to help ARM developers:
> New
>
> Bug description:
> On ARM Versatile Express A9 board with Linaro Android image:
>
> https://android-build.linaro.org/builds/~linaro-android/vexpress-
> linaro-13.09-release/#build=6
>
> Information is unavailable on "Clocks" & "Gpio" after launched
> powerdebug version 0.7.1, error output shows as below:
>
> root@vexpress:/ # powerdebug
> failed to initialize clock details (check debugfs)
> error: unable to open directory /sys/class/gpio
> failed to initialize gpios
> root@vexpress:/ #
>
> Please refer to attachment to get snapshot pictures.
>
> Note: Please run powerdebug in ADB shell, which the output is well
> formated, however the failure is same as run in serial console.
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/linaro-powerdebug/+bug/1229658/+subscriptions