Subject: Re: Adaptec 2940 UW variant supported on V1.3.2 ?
To: Michael K. Sanders <>
From: Steen Linden <>
List: netbsd-users
Date: 11/05/1998 16:55:09
On Wed, 4 Nov 1998, Michael K. Sanders wrote:
> In message <01BE0844.7374B7E0.Scott.Burns@Netcontech.Com>, Scott Burns writes:
> >Re-reading the supported i386 hardware in detail, and flipping through the 
> >pci ahc code, I don't see support for this Ultra-Wide Adaptec. Does anyone 
> >know if it works with the V1.3.2/i386 code (searchable mailing lists are 
> >down right now ;-)) ? All I can see in the source is:
> The Adaptec 2940UW is definitely supported:
> ahc0 at pci0 dev 12 function 0
> ahc0: interrupting at irq 11
> ahc0: aic7880 Wide Channel, SCSI Id=7, 16 SCBs
> scsibus0 at ahc0 channel 0: 16 targets
> ahc0: target 2 using 16Bit transfers
> ahc0: target 2 synchronous at 10.0MHz, offset = 0x8                           
> >#define PCI_DEVICE_ID_ADAPTEC_AIC7880   0x80789004ul
> This is the chipset used by the 2940UW.

Another question about Ultra-Wide Adaptec support:

Can someone explain why it is running at 10.0Mhz instead of 20Mhz? I
have that problem too, whereas the PC of a colleague of mine is
running at 20.0Mhz (40 Mbytes/s). We checked the setup without luck
and have not been able to locate any differences other than the firmware
versions of the Adaptec and the disk.