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From: Vladimir Grebenschikov <vova@fbsd.ru>
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Date: Tue, 15 Mar 2005 10:01:38 +0300
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Subject: Re: Reattach/redetect allways connected umass device - is it
	possible ?
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=F7 =D0=CE, 14/03/2005 =D7 19:51 +0100, Bernd Walter =D0=C9=DB=C5=D4:
>On Mon, Mar 14, 2005 at 02:45:17PM +0300, Vladimir Grebenschikov wrote:
>> Hi=20
>>=20
>> I have SONY notebook with integrated memory stick card reader. It
>> appears as USB umass device and works well.
>>=20
>> Usbdevs output is here:=20
>> Controller /dev/usb3:
>> addr 1: high speed, self powered, config 1, EHCI root hub(0x0000), Intel=
(0x0000), rev 1.00, device uhub4
>>  port 1 powered
>>  port 2 powered
>>  port 3 powered
>>  port 4 powered
>>  port 5 addr 2: high speed, self powered, config 1, USB Memory Stick Slo=
t(0x014d), Sony(0x054c), rev 1.10, device umass1
>>  port 6 powered
>>=20
>> Only problem is that card-reader itself toes not detach USB device on fl=
ash removal. So if I change card to another card of different size=20
>> it is not detected and da0 device still has old geometry.
>
>Yes - GEOM is kind of suboptimal with removeable media.
>cat /dev/null > /dev/da0

Thank you!

But probably we should have better control for this.
I guess opening file-system for write is not best thing for that.

--=20
Vladimir B. Grebenchikov
vova@fbsd.ru