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eudev starts at boot; Xorg finds its input devices through it

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udevd and a one-shot trigger run from schinit, 10-schos.conf no longer lists
event0/event1, and the docs say what udev covers and what it does not.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EVRhxi9zpdW2uDUN4FVcao
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Nexoniarz 2026-10-26 11:44:21 +01:00
commit b3f72cd95e
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6
docs/architecture/networking.md
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@ -649,7 +649,11 @@ information was there and the code did not ask.
`SO_BROADCAST`, `TCP_NODELAY` reach lwIP's pcb; `SO_SNDBUF`/`SO_RCVBUF` report the
real size; `SO_PASSCRED` on Unix sockets) and refuses the rest with `ENOPROTOOPT`.
Notably absent: `SO_RCVTIMEO`/`SO_SNDTIMEO`.
- **`SOCK_DGRAM` over AF_UNIX does not exist** — stream only.
- **`SOCK_DGRAM` and `SOCK_SEQPACKET` over AF_UNIX** keep message boundaries (each message carries a
16-byte header in the same ring) but have no unconnected form: `socketpair` and listeners work,
`sendto` a path does not.
- **Netlink `NETLINK_KOBJECT_UEVENT`** is the one multicast family: sockets bound to group 1 hear the
kernel's device events, group 2 what udevd re-announces, and a datagram can be addressed to a port id.
- **No IPv6**, no firewall or packet filter of any kind, and a TCP stack that has
been used for downloads at tens of megabits and no more than that.
- **Three drivers in the kernel, one Linux driver outside it**, and the class is