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Date:      Thu, 23 Jul 2009 19:59:09 +0100
From:      Bruce Simpson <bms@incunabulum.net>
To:        Eugene Grosbein <eugen@kuzbass.ru>
Cc:        freebsd-stable@freebsd.org, Sagara Wijetunga <sagara@tomahawk.com.sg>
Subject:   Re: SCSI device not created upon a CF card plug in
Message-ID:  <4A68B2FD.5090807@incunabulum.net>
In-Reply-To: <20090723055317.GA72627@svzserv.kemerovo.su>
References:  <20090722022027.12059.qmail@us1.tomahawkonline.net>	<20090722142033.GA13316@svzserv.kemerovo.su>	<20090723001338.27858.qmail@us1.tomahawkonline.net>	<20090723035900.GA67095@svzserv.kemerovo.su>	<20090723021418.29042.qmail@us1.tomahawkonline.net> <20090723055317.GA72627@svzserv.kemerovo.su>

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Eugene Grosbein wrote:
> On Thu, Jul 23, 2009 at 10:14:18AM +0800, Sagara Wijetunga wrote
>> If you conversant in this area, could you help us to identify what is/are 
>> the exact function/s in which program/s to look into identify the media 
>> insertion activity, so that we can generate relevant devd event. 
>>     
>
> No, I'm not. In your position I would study the device specs -
> does it generate hardware event in case of media change in first place?
>
> If yes, I'd read sources of umass driver to see how it generates events
> for single flash device and add such event for reader's media change.
>   

rwatson@ has or has had a patch to do something like this.

It is complicated by the fact that GEOM and NEWBUS don't necessarily 
talk to each other directly.

I agree something needs to be done about removable volume management in 
FreeBSD.

cheers,
BMS



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