rellla changed the topic of #linux-sunxi to: Allwinner/sunxi /development discussion - did you try looking at our wiki? https://linux-sunxi.org - Don't ask to ask. Just ask and wait! - https://github.com/linux-sunxi/ - Logs at http://irclog.whitequark.org/linux-sunxi - *only registered users can talk*
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<megi> hehe :)
<megi> maybe he detached :)
<megi> blacklisting the module should also work
<tuxd3v> megi, thats the easy way :)
<megi> I like the easy ways
<tuxd3v> here is a must! :)
<megi> I'm thinking of adding DMA support to musb-sunx, but Alwwinner doesn't make it easy
<megi> half of the SoCs use internal DMA controller and half the external one
<megi> requiring a completely different code
<megi> lol
<megi> my PocketBook would benefit the most, since USB PIO there is really slow, it's ~4MiB/s
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<tuxd3v> I don't know if this would also work:
<tuxd3v> ACTION=="add", SUBSYSTEM=="usb", ATTRS{idVendor}=="VID", ATTRS{idProduct}=="PID", ATTR{authorized}="0"
<megi> on A83T using mass-storage over USB is limited to 13MiB/s due to lack of DMA, and CPU load is 50% during transfer
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<megi> or just killing udev?
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<megi> that will not help if the module is already loaded though
<tuxd3v> that will not help is the module is already loaded, only on loading...it has a flaw
<tuxd3v> :)
<tuxd3v> it needs to remove, and then load
<tuxd3v> or that is trigger..
<tuxd3v> humm
<tuxd3v> via blacklist is the better solution ;)
<tuxd3v> what is that device you are talking megi, the PocketBook
<tuxd3v> how mutch memory is has inside?
<tuxd3v> I believe you are talking about this products: https://www.pocketbook-int.com/us/products/e-ink
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<megi> tuxd3v: ^
<megi> it has A13 SoC 256MiB RAM
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<willmore> megi, can you put a layer of abstraction around the DMA to make the core changes easier and then add the low level DMA on a per-chip or per-chip family level?
<megi> probly not, musb driver already has an abstraction over dma for SoC that feature musb hardware
<megi> so that would be one abstraction too many, I guess
<megi> it will just need two implementations, and that's probably fine
<willmore> roger
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<fALSO> any of you guys use archlinux ?
<megi> yes
<fALSO> Recently my orangepi pc hangs while upgrading packages on pacman
<fALSO> with big packages, like boost, or gdb
<fALSO> i even tried adding 2gb of swap
<fALSO> still happened
<KotCzarny> power issue? mmc reset in dmesg?
<fALSO> probably its the card dying? gotta connect the serial to it
<megi> I don't think pacman is memory hungry
<fALSO> not a power issue, its the same power adapter
<fALSO> i think it is happening while upgrading packages that have a lot of files
<KotCzarny> mmc controller is very power sensitive
<fALSO> just wanted to know if has been happening to anyone here ? ;-)
<KotCzarny> if you ask about usual mmc problems, yes
<KotCzarny> ;)
<KotCzarny> s/mmc/sdcard/
<fALSO> well i never had them
<megi> not on any of my 5 Orange Pi PC's ;)
<KotCzarny> falso: anything shows on serial console?
<fALSO> gonna connect the serial thingy to it today
<fALSO> and force an upgrade again
<fALSO> to figure out why its hanging
<fALSO> if it even prints something to serial, lets hope
<megi> power adapter can also degrade over time, for example due to aging electrolytic capacitors
<fALSO> it just crashes under that condition
<fALSO> upgrading packages in pacman
<fALSO> i thinking its the card probably dying, ill report today later!
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<sunshavi> fALSO: I use arch
<fALSO> yap, more people here also, but no one had the problem
<fALSO> in one hour i leave work :)
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