Messages in this thread | ![/](/images/icornerl.gif) | | Date | Fri, 10 Jan 2003 11:27:27 -0800 (PST) | From | Manish Lachwani <> | Subject | Re: FW: Fastest possible UDMA - how? |
| |
If the drives support UDMA 2, then the controller will operate in UDMA 2. In that case, the IDENTIFY information will show UDMA 2 for UDMA mode selected and UDMA 2 for UDMA mode supported.
Now, say that I have a drive that supports UDMA 6 and the controller supports UDMA 5. Then, from the IDENTIFY information, the UDMA selected would be UDMA 5 while the UDMA supported would be UDMA 6.
Thanks manish --- Valdis.Kletnieks@vt.edu wrote: > On Fri, 10 Jan 2003 11:04:03 PST, Manish Lachwani > <m_lachwani@yahoo.com> said: > > Take a look at the drive IDENTIFY data. From the > ATA > > spec, it can be seen that word# 88 in the IDENTIFY > > data can help you find out the UDMA mode selected > and > > UDMA mode supported. > > > > The UDMA mode supported is the maximum supported > by > > the drive. > > Will this DTRT if the IDE *controller* does UDMA-5 > but the drives are UDMA-2 > at best? >
> ATTACHMENT part 2 application/pgp-signature
__________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| ![\](/images/icornerr.gif) |