[ltp] PCMCIA SD reader, 2.6.19 vs 2.6.27

[Laurent]

Hi,

i recently reactivated my PCMCIA SD card reader. It used to do
PIO4 (at/around kernel 2.6.19) and was medium-slow. Now (2.6.27)
it uses PIO0 and is dead slow (using the same R51-1829 with the
same BIOS and the same cards).

And hdparm -I shows very strange values. They change if i copy
files to the cards. The field "Model Number" usually contains
parts of the last filename written...


Any ideas why?

Thanks.


hdparm of a 512MB SD card:

$ sudo hdparm -I /dev/sdb

/dev/sdb:

ATA device, with non-removable media
	Model Number:       -E�rBashi�nfo������
	Serial Number:      
-E�..
	Firmware Revision:  -:-

Standards:
	Used: unknown (minor revision code 0x5500)
	Supported: 14 11 10 9 7 6 5
	Likely used: 14
Configuration:
	Logical		max	current
	cylinders	8224	0
	heads		8224	0
	sectors/track	0	0
	--
	LBA    user addressable sectors:        105
	device size with M = 1024*1024:           0 MBytes
	device size with M = 1000*1000:           0 MBytes
Capabilities:
	LBA, IORDY(can be disabled)
	Standby timer values: spec'd by Standard, no device specific minimum
	R/W multiple sector transfer: Max = 255	Current = ?
	Recommended acoustic management value: 255, current value: 255
	DMA: mdma2 mdma4 mdma5 mdma6 (?)
	PIO: unknown
Security:
		supported
	not	enabled
		locked
	not	frozen
	not	expired: security count
		supported: enhanced erase
	508min for SECURITY ERASE UNIT. 508min for ENHANCED SECURITY ERASE UNIT.
Logical Unit WWN Device Identifier: 4d0474e
	NAA		: 0
	IEEE OUI	: 4d000
	Unique ID	: 047004e
Integrity word not set (found 0x0000, expected 0x92a5)