Date: Thu, 26 Dec 1996 19:01:39 +0100 (MET) From: J Wunsch <j@uriah.heep.sax.de> To: freebsd-hackers@freebsd.org (FreeBSD hackers) Cc: peter@clari.net.au Subject: Re: Help with sb Message-ID: <199612261801.TAA02654@uriah.heep.sax.de> In-Reply-To: <199612261735.EAA24737@godzilla.zeta.org.au> from Bruce Evans at "Dec 27, 96 04:35:19 am"
next in thread | previous in thread | raw e-mail | index | archive | help
As Bruce Evans wrote: > >It will burn many CPU cycles in tight loops then. > > The driver was so braindamaged that this was required for many printers > with working interrupts anyway. Joerg improved the driver, but it's not > clear if the polling code is still useful since no one complains about > working code :-). Well, now that you mention it, indeed, it's been me... I almost forgot about this. :-) But you're right, it's quite possible that it works in interrupt mode now for all printers that generated the ACK signal at all (and for all cables that properly wire it, of course). -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199612261801.TAA02654>