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Tasklist

FS#14436 - 32 Bit pcmcia CF reader running at 16 Bit speed.

Attached to Project: Arch Linux
Opened by brian harkness (bwh1969) - Thursday, 23 April 2009, 11:26 GMT
Last edited by Hugo Doria (hdoria) - Wednesday, 03 June 2009, 14:27 GMT
Task Type Bug Report
Category Kernel
Status Closed
Assigned To No-one
Architecture i686
Severity Low
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Description:
Default kernel driver seems to run 32 bit Delkin pcmcia CF card reader as 16 bit. hdparm -t /device has output of 1.81 mbps with 266x Kingston CF card inserted into reader. If card is placed in 16 bit pcmcia CF reader, the results are the same.

hdparm commands to change to 32 bit fail with "failed to set for device" Efforts to enable DMA give similar results. "Failed to set ioctl for device"

'Pccardclt info' lists card as 32 bit so part of OS is identifying hardware correctly.

Card runs 20 mbps (sustained) with same hardware in same computer under non Linux OS (Windows XP).

Additional info:

* package version(s)
Latest kernel

* config and/or log files etc.
None available other than given information


Steps to reproduce:
Would need a 32 bit CF reader with similar CF memory card to replicate.

This task depends upon

Closed by  Hugo Doria (hdoria)
Wednesday, 03 June 2009, 14:27 GMT
Reason for closing:  Upstream
Comment by Roman Kyrylych (Romashka) - Sunday, 31 May 2009, 12:21 GMT
In order to get this fixed quicker I suggest to report the bug to bugzilla.kernel.org

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