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Is there any manual for libDRM API? I'd like to set new mode with custom timings

```
[0] bluraf!3@motoko:~ $ man 3 drmModeGetCrtc
No manual entry for drmModeGetCrtc in section 3
```

Ugh, I forgot Mastodon doesn't support Markdown formatting...

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@BluRaf it's a mix of looking up stuff on the internet, and reading the mesa/libdrm sources, sadly

@pcy shit. So I guess this is why everyone is still writing dpi_timings for their Raspberry Pi's for custom timings? :/

@BluRaf multiple reasons, but it's one of them

(there's also the "it works, so why bother changing it" reason, and code quality generally being quite low in rpi and arduino circles. see eg. wiringPi or your average arduino library)

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