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<Pix>
beeble, hi, since you seem to have some answers, i got a new question, do you know how i can toggle the Sapphire's fan ? cooling_device0/1/2 in /sys are not a "fan" type
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<beeble>
Pix: GPIO1_C2 can enable/disable the fan
<beeble>
if it's connected to this small 2pin header on the sapphire
<beeble>
n = (block_number * 32) + (sub_block_number * 8) + index
<Pix>
lemme reboot.. ( i broke the kernel )
<Pix>
hmm ok the sysfs interface seems broken
<Pix>
i'll try the dts-way
<beeble>
do you have it enabled?
<beeble>
CONFIG_GPIO_SYSFS
<beeble>
and on mainline it is default off since it's deprecated
<Pix>
well as i'm not at all used to the gpio interfaces.. yep
<Pix>
i got it
<Pix>
i have /sys/class/gpio/export
<Pix>
it's when i echo 50 > export
<Pix>
i have a kernel oops & backtrace
<Pix>
that's what i mean by 'it seems broken' :)
<Pix>
i'm using the rockchip 4.4, not the main vanilla kernel
<beeble>
should work fine on 4.4
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<Pix>
i'll compare the defconfig to the original rockchip one, i've made changes ( to enable a bunch of things like iptables, some filesystem) to have it boot a Centos 7 correctly
<Pix>
maybe i enabled/disabled something more low level without thinking
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<Pix>
thank you beeble, i've got some info to play with now :)
<beeble>
Pix: btw, i based the gpio number on schematics i found on my pc. i haven't tested it on a board