Re: [PATCH] Override 80-wire cable detection for Toshiba S1800-814 (resend)

2007-09-05 Thread Bartlomiej Zolnierkiewicz
On Friday 31 August 2007, Daniel Exner wrote: > Hi! > > Please CC me, as I'm currently not subscribed to this list, thx. applied but please inline patches instead of attaching them next time (makes it much easier to review/apply them) - To unsubscribe from this list: send the line "unsubscribe li

Re: [PATCH] Override 80-wire cable detection for Toshiba S1800-814

2007-08-30 Thread Alan Cox
> What's the max length of a 40wire cable to sustain 80wire cable > characteristics? Depends on the materials and connector. The required electrical characteristics for any cable are in the spec, and if you want to know more you'll need to know a lot more than I do about transmission line theory!

Re: [PATCH] Override 80-wire cable detection for Toshiba S1800-814

2007-08-30 Thread Jan Engelhardt
On Aug 30 2007 15:47, Lennart Sorensen wrote: >On Thu, Aug 30, 2007 at 09:38:23PM +0200, Jan Engelhardt wrote: >> Hard to tell, since some (most?) laptops have sort of a backplane and there >> might be no real cable you could see because it's all mainboard wire paths >> already. > >Makes you wonde

Re: [PATCH] Override 80-wire cable detection for Toshiba S1800-814

2007-08-30 Thread Lennart Sorensen
On Thu, Aug 30, 2007 at 09:38:23PM +0200, Jan Engelhardt wrote: > Hard to tell, since some (most?) laptops have sort of a backplane and there > might be no real cable you could see because it's all mainboard wire paths > already. Makes you wonder why the mainboard doesn't just pretend to be an 80

Re: [PATCH] Override 80-wire cable detection for Toshiba S1800-814

2007-08-30 Thread Jan Engelhardt
On Aug 30 2007 16:54, Al Boldi wrote: > >What's the max length of a 40wire cable to sustain 80wire cable >characteristics? Hard to tell, since some (most?) laptops have sort of a backplane and there might be no real cable you could see because it's all mainboard wire paths already. Jan

Re: [PATCH] Override 80-wire cable detection for Toshiba S1800-814

2007-08-30 Thread Robert Hancock
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 boot

Re: [PATCH] Override 80-wire cable detection for Toshiba S1800-814

2007-08-30 Thread Al Boldi
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 boot

Re: [PATCH] Override 80-wire cable detection for Toshiba S1800-814

2007-08-30 Thread Alan Cox
> 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 ca

Re: [PATCH] Override 80-wire cable detection for Toshiba S1800-814

2007-08-29 Thread Al Boldi
Alan Cox wrote: > Daniel Exner <[EMAIL PROTECTED]> wrote: >> Attached patch will add above mentioned Laptop Model to whitelist for both >> pata_ali and alim15x3, as it is correctly detected as 40-wire connected >> but this cable is short enough to still do transfers higher than UDMA33. > > Looks g

Re: [PATCH] Override 80-wire cable detection for Toshiba S1800-814

2007-08-29 Thread Alan Cox
On Wed, 29 Aug 2007 23:41:13 +0200 Daniel Exner <[EMAIL PROTECTED]> wrote: > Hi! > > Please CC me, as I'm currently not subscribed to this list, thx. > > Attached patch will add above mentioned Laptop Model to whitelist for both > pata_ali and alim15x3, as it is correctly detected as 40-wire co