usb CF reader and 2.4.19

usb CF reader and 2.4.19

[Joseph Wenninger]

Hi

Is there anything I can do to flush all usb / usb storage buffers to my
compact flash ? 

At the moment I have to rmmod usb-storage && rmmod usb-uhci && modprobe
usb-uhci && modprobe usb-storage to ensure all data is written
correctly, otherwise the directory structure isn't saved even after an
unmount.

Is there an application, function call, ioctl, .... which I can use,
instead of the above mentioned inconvenient way ?

Kind regards
Joseph Wenninger

Re: usb CF reader and 2.4.19

[Rob van Nieuwkerk]

Hi Joseph,

You don't mention what USB device you are using with your compact flash.
I don't have any problems with a "SanDisk Imagemate, SDDR-31" USB
CF reader: works flawlessly.

I'm using a up-to-date Red Hat 7.3 system with Red Hat kernel 2.4.18-10.
Maybe the driver(s) for your USB and/or cardreader are buggy.

	greetings,
	Rob van Nieuwkerk

PS: before chosing the SDDR-31 I did some extensive web-research on the
    USB/CF readers available with Linux.  I chose the SDDR-31 (which
    can be a bit hard to get nowadays) because it seemed the device
    with the least (Linux) problems.

> Is there anything I can do to flush all usb / usb storage buffers to my
> compact flash ? 
> 
> At the moment I have to rmmod usb-storage && rmmod usb-uhci && modprobe
> usb-uhci && modprobe usb-storage to ensure all data is written
> correctly, otherwise the directory structure isn't saved even after an
> unmount.
> 
> Is there an application, function call, ioctl, .... which I can use,
> instead of the above mentioned inconvenient way ?
> 
> Kind regards
> Joseph Wenninger

Re: usb CF reader and 2.4.19

[Greg KH]

On Wed, Oct 16, 2002 at 11:22:04AM +0200, Joseph Wenninger wrote:
> Hi
> 
> Is there anything I can do to flush all usb / usb storage buffers to my
> compact flash ? 
> 
> At the moment I have to rmmod usb-storage && rmmod usb-uhci && modprobe
> usb-uhci && modprobe usb-storage to ensure all data is written
> correctly, otherwise the directory structure isn't saved even after an
> unmount.
> 
> Is there an application, function call, ioctl, .... which I can use,
> instead of the above mentioned inconvenient way ?

sync(1) and then umount(8) doesn't flush everything to the device?

thanks,

greg k-h

Re: usb CF reader and 2.4.19

[Joseph Wenninger]

Hi

Am Mit, 2002-10-16 um 17.34 schrieb Greg KH:
...
> 
> sync(1) and then umount(8) doesn't flush everything to the device?
> 

Exactly. If I remount the device it looks like everything is okay, but
if I put it into my notebook instead the CF appears still empty. If I do
the module unloading before I remove the CF from the reader it works. I
don't think that it is the card reader, since it works perfectly with
Windows XP or 2000.

Just for reference I use a ML4-USB card reader/writer from Datafab. It
is a device with 4 slots (each appearing as an own device) for
CF,SM,SD,MS

Kind regards
Joseph Wenninger

Re: usb CF reader and 2.4.19

[Vid Strpic]

On Wed, Oct 16, 2002 at 11:22:04AM +0200, Joseph Wenninger wrote:
> Is there anything I can do to flush all usb / usb storage buffers to
> my compact flash ? 
> At the moment I have to rmmod usb-storage && rmmod usb-uhci &&
> modprobe usb-uhci && modprobe usb-storage to ensure all data is
> written correctly, otherwise the directory structure isn't saved even
> after an unmount.

eject sda|whichever device it is, maybe?

Works here with my SM/CF reader.

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