#asahi-dev on 2022-08-04 — irc logs at oftc.irclog.whitequark.org

2022-03-22 11:58 ChanServ changed the topic of #asahi-dev to: Asahi Linux: porting Linux to Apple Silicon macs | General development | GitHub: https://alx.sh/g | Wiki: https://alx.sh/w | Logs: https://alx.sh/l/asahi-dev

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16:44 <jjleahy> for a tethered boot setup the host machine needs to be a mac?

16:45 <mps> jjleahy: no

16:45 <jannau> no, any machine with usb2 should work

16:45 <mps> and usb-c

16:45 <jannau> with an aarch64 (cross-)compiler

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16:46 <jjleahy> i see, okay thank you

16:46 <jannau> no, an usb2 usb-a/usb-c cable is enough

16:47 <mps> yes, but I mostly used usb-c to usb-c

16:47 <mps> and ofc, usb A to usb-c works also, tested few times

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17:49 <jjleahy> im new to kernel development & free software so i was going to look at the yaks. for the PASemi I2C kernel driver I would need to edit i2c-pasemi-core.c and then recompile the kernel?

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18:03 <povik> yes, also one or two of the other i2c-pasemi-* files

18:03 <povik> but there's amarioguy who took an initial stab at the yak

18:10 <jjleahy> thank you, ill message them and see if they need help

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19:32 <Willmish[m]> Curious to see if there are any other easy starting points for kernel dev newbies, I am currently looking into Linux Foundation course (https://training.linuxfoundation.org/training/a-beginners-guide-to-linux-kernel-development-lfd103/) and this: https://kernelnewbies.org/FirstKernelPatch

19:32 <Willmish[m]> Would love to hear input of other devs here, how they got into kernel development?

19:37 <steev> i got thrown into the deep end, and just kinda winged it (still do tbh)

19:44 <sven> same here

19:45 <Willmish[m]> So would you say jumping on one of these might be a good starting point? https://github.com/AsahiLinux/docs/wiki/Yaks-in-need-of-shaving

19:45 <sven> sure

19:47 <Willmish[m]> Will do some digging over the weekend then first to see if I feel ready

19:47 <tpw_rules> are you a kernel dev newbie or a dev newbie?

19:50 <j`ey> Willmish[m]: the i2c one basically done, but im not sure if/what jeff has done on the hwmon side

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20:23 <sven> we should probably add more simple stuff to that list

20:25 <sven> wasn’t there some very early keyboard backlight driver (or documentation?) that could be cleaned up e.g.?

20:25 <j`ey> yeah I uh, should try finish that

20:25 <sven> :D

20:25 <j`ey> it's mostly working, was kinda hoping marcan would be interested in figuring out some of the other bits

20:25 <sven> or just add it to the list and get someone else to finish it! :P

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20:25 <j`ey> I only "know" 3 of the bits

20:26 <sven> bits?

20:26 <j`ey> in the status/control register

20:26 <sven> oh, in some config register?

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20:27 <j`ey> // TODO: Why two bits?

20:27 <j`ey> #define ENABLE BIT(14) | BIT(1)

20:27 <j`ey> :)

20:27 <sven> :D

20:27 <j`ey> cant seem to enable it without both these being set, but no idea why

20:27 <sven> what’s the third one? :>

20:27 <j`ey> #define UPDATE BIT(5)

20:28 <j`ey> the settings wont update until you write this bit

20:28 <sven> so essentially write those three bits and then it’ll update?

20:29 <j`ey> basically.. I dont know much. enough to get the driver working, but I reckon markan could find out more

20:29 <j`ey> yeah

20:30 <sven> can you observe the output on some gpio?

20:30 <jannau> btw, there is a spi hid command to toggle the keyoard backlight. macos uses that when the keyboard backlight is to only while typing

20:31 <jannau> +set

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20:32 <j`ey> jannau: just on/off? or can it dim?

20:32 <j`ey> sven: hm that could be an idea

20:33 <sven> if that’s possible you can probably slow it down enough to make that gpio logic analyzer work

20:33 <jannau> just on/off. is there an option to dim the keyboard backlight manually in macos?

20:34 <sven> yeah, it’s usually on some function key

20:35 <j`ey> also in the settings in the top right

20:36 <j`ey> https://i.stack.imgur.com/JAmKk.png

20:37 <jannau> or in system settings, which is only visible if "adjust keyboard brightness in low light" is not activated

20:42 <jannau> top right menu is in ventura replaced with "stage manager"

20:42 <jannau> the keyboard brightness menu

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20:54 <amarioguy> on i2c irq stuff - just giving a heads up i'll be working on improving the patchset tomorrow (to everyone who sent me comments on the commits, thanks! i got them all, and i'm working on it, just trying to juggle projects here lol)

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