[Soekris] DMA data transfer from CompactFlash
phk at phk.freebsd.dk
Wed Jan 10 08:03:31 UTC 2007
In message <20070110075243.CE04A1C047 at coconut.itojun.org>, Jun-ichiro itojun Ha
> I got two Soekris 4801 devices:
> - purchased 2003/8 (A)
> - purchased 2007/1 (B)
> both has latest bios, 1.28.
> also I have two 1G CF cards from SanDisk.
> - purchased 2003 (alpha)
> - purchased 2007 (beta)
> i am experiencing strange symptoms.
> - alpha can only do PIO transfers. beta can do DMA transfers as well.
In the newer revisions of the 4801 DMA transfers to/from
CF cards is possible, but not all CF cards support it.
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
More information about the Soekris-tech