(Sorry if this is OT) I've got:

the daemon book
K&R
Stevens (UNIX network programming vol1 and APIUE)
/usr/src :)

Can anyone recommend a good book to fill the gaps - something on
device drivers in particular, but not Linux-centric? Thanks.

-- 
Every man is as God made him, ay, and often worse.
		-- Miguel de Cervantes
Rasputin :: Jack of All Trades - Master of Nuns