A minor problem w/ access to my flash drive

[Alexey Morozov]

Pozsar Balazs writes:

>On Mon, Jan 24, 2005 at 02:17:04PM +0600, Alexey Morozov wrote:
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>>But why?? I always thought that USB devices have true notification 
>>model, so a device exists till appropriate disconnect event is received. 
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>There is notification about usb removal. So far so good.
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Sure, I'm talking about this particular flash drive ;-)

>The problem is, if you plug in an usb card reader you do not get 
>notification about plugging/unplugging card into/from it. That's why hal 
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No, that's not always true. Just a few hours ago I plugged in a friend's 
CF into my card reader and, voila, I have 'magically appeared' 
/media/storage_sda1 and corresponding /dev/sda1. I'm sure that there 
were hotplug/udev events on both plugging and unplugging the card 
(because I have quite custom udev scripts, so /dev/sda1 was a symlink to 
/dev/discs1/part1 which didn't exist before I put the card in).

>polls these devices. It cannot distinguish a card reader and an usb 
>stick from which you cannot remove the "media".
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Actually I can ;-). In hal-device-manager. It's called 'Flash Reader' 
and has properties different from a 'proper' USB flash. Honestly :-). If 
you need I can collect properties from both devices so you can compare 
them...

>Maybe hal could have a list about non-card-readers, and not poll them? 
>(whitelisting). That would seem a good idea to me.
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>So it would not poll devices it knows it doesnt need to.
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I guess there should be a _blacklist_. At least for me ;-).

BTW, I noticed that HAL _did_ not created appropriate mount entry for 
the CF-card. That mount entry was created by blockdev.hotplug script.

Alexey

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