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Message-id: <46D6D43F.8040803@shaw.ca> Date: Thu, 30 Aug 2007 08:29:19 -0600 From: Robert Hancock <hancockr@...w.ca> To: Al Boldi <a1426z@...ab.com> Cc: Alan Cox <alan@...rguk.ukuu.org.uk>, linux-kernel@...r.kernel.org, dex@...gonslave.de Subject: Re: [PATCH] Override 80-wire cable detection for Toshiba S1800-814 Al Boldi wrote: > Alan Cox wrote: >>> Wow! I have been running 80wire cable detection override on 40wire >>> cables for quite some time without any problem, but I never thought it >>> to be legal if the 40wire cable length is short enough. >> Yes. >> >>> How short does it have to be, and can't we have a kernel bootparm to >>> override the cable detection? >> For most users the goal should be to automate behaviour. It should just >> work. > > What's the max length of a 40wire cable to sustain 80wire cable > characteristics? This is normally only the case on a laptop, where the cable is essentially just a tiny stub between the motherboard and the drive. I suspect this is something that the system manufacturer has to validate works properly, more than any hard and fast limit. For a normal desktop PC, it would be far better to just use an 80-wire cable. -- Robert Hancock Saskatoon, SK, Canada To email, remove "nospam" from hancockr@...pamshaw.ca Home Page: http://www.roberthancock.com/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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