IO errors: SanDisk ImageMate USB CF, SD, MMC reader

IO errors: SanDisk ImageMate USB CF, SD, MMC reader

[Eli]

All,

Problem Summary:
I have a SanDisk ImageMate USB compactFlash + SecureDigital + MultiMediaCard 
reader, and I am getting IO errors trying to read a 128MB SimpleTech CF card 
with 2.4 kernels.

Details:

I have an 8MB Canon CF card and a 128MB SimpleTech CF card.

With the USB reader, I see:
OS or Device      | 8MB | 128MB |
------------------+-----+-------+
MacOS 9           |  OK |   OK  |
RH 2.4.17-0.16smp |  OK |  ERR  |
RH 2.4.18-3       |  OK |  ERR  |

ERR means that I get IO errors when I try to 'cp -a' the contents of the CF 
card to local disk.
"pc: reading '/mnt/flash1.....': Input/output error" is repeated for many of 
the files on the card, but not all of them.  Most of them seem to be later 
files.

Also, with a PCMCIA adapter in the RH 2.4.18-3, both CF cards work.
Both cards also work in a HandEra 300 PDA and a Canon PowerShot A40 digital 
camera.

Any suggestions of how I could track down the problem?  (I've submitted a bug 
report to SanDisk as well, but this looks like a Linux problem to me.)

(Please CC me as I am not subscribed here at home.)

Eli Carter
retracile(a)earthlink.net

Re: IO errors: SanDisk ImageMate USB CF, SD, MMC reader

[Andre Hedrick]

Because SD is DRM and since the method to double pump a split read/write10
across the bus is not very simple nor public, there is legal problem.
I suspect I just got myself one for even mentioning the stuff above.

On Fri, 6 Sep 2002, Eli wrote:

> All,
> 
> Problem Summary:
> I have a SanDisk ImageMate USB compactFlash + SecureDigital + MultiMediaCard 
> reader, and I am getting IO errors trying to read a 128MB SimpleTech CF card 
> with 2.4 kernels.
> 
> Details:
> 
> I have an 8MB Canon CF card and a 128MB SimpleTech CF card.
> 
> With the USB reader, I see:
> OS or Device      | 8MB | 128MB |
> ------------------+-----+-------+
> MacOS 9           |  OK |   OK  |
> RH 2.4.17-0.16smp |  OK |  ERR  |
> RH 2.4.18-3       |  OK |  ERR  |
> 
> ERR means that I get IO errors when I try to 'cp -a' the contents of the CF 
> card to local disk.
> "pc: reading '/mnt/flash1.....': Input/output error" is repeated for many of 
> the files on the card, but not all of them.  Most of them seem to be later 
> files.
> 
> Also, with a PCMCIA adapter in the RH 2.4.18-3, both CF cards work.
> Both cards also work in a HandEra 300 PDA and a Canon PowerShot A40 digital 
> camera.
> 
> Any suggestions of how I could track down the problem?  (I've submitted a bug 
> report to SanDisk as well, but this looks like a Linux problem to me.)
> 
> (Please CC me as I am not subscribed here at home.)
> 
> Eli Carter
> retracile(a)earthlink.net
> -
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> 

Andre Hedrick
LAD Storage Consulting Group

Re: IO errors: SanDisk ImageMate USB CF, SD, MMC reader

[Eli]

On Saturday 07 September 2002 02:46 am, Andre Hedrick wrote:
> Because SD is DRM and since the method to double pump a split read/write10
> across the bus is not very simple nor public, there is legal problem.
> I suspect I just got myself one for even mentioning the stuff above.

But I am not using SD.  I'm using CF.  Why would the above affect CF, and 
only the 128MB CF and not the 8MB CF?

Thanks for responding,

Eli
retracile(a)earthlink.net