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Message-id:	<51CC606E.8060703@cygwin.com>
Date:	Thu, 27 Jun 2013 11:55:26 -0400
From:	"Larry Hall (Cygwin)" <reply-to-list-only-lh AT cygwin DOT com>
Reply-to:	cygwin AT cygwin DOT com
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To:	cygwin AT cygwin DOT com
Subject:	Re: Is there SCSI ioctl() support in cygwin? Where is sg.h?
References:	<51CADF24 DOT 4090200 AT bracketfire DOT com> <20130626153051 DOT GE6966 AT calimero DOT vinschen DOT de> <20130626190413 DOT GC3127 AT ednor DOT casa DOT cgf DOT cx> <20130627083321 DOT GJ6966 AT calimero DOT vinschen DOT de>
In-reply-to:	<20130627083321.GJ6966@calimero.vinschen.de>

On 6/27/2013 4:33 AM, Corinna Vinschen wrote:
> On Jun 26 15:04, Christopher Faylor wrote:
>> On Wed, Jun 26, 2013 at 05:30:51PM +0200, Corinna Vinschen wrote:
>>> On Jun 26 08:31, Peter Allen wrote:
>>>> I've searched the archives and the net and haven't found any
>>>> information about using ioctl() to send commands to a SCSI disk.
>>>>
>>>> I'm porting an application that needs structures defined in sg.h,
>>>> (sg_io_hdr_t) but can't find that header in any cygwin package.
>>>>
>>>> Is there support for this in cygwin?
>>>
>>> No, sorry, there isn't.  While Windows offers SCSI passthrough
>>> capability using some DeviceIoControl control code, we don't support the
>>> /dev/sg* devices and the translation from sg to underlying Windows
>>> device.
>>>
>>> I played with the SCSI passthrough stuff a couple years ago.  I'd say,
>>> the real problem is not to support passthrough, but the device
>>> translation.  There's pretty certainly a way to offer that, but off the
>>> top of my head I don't know how to.
>>>
>>> Adding a Cygwin fhandler for sg devices and SCSI passthrough would
>>> probably be a nice side project for somebody who's interested in this
>>> stuff.  It wouldn't really collide with anything which is already
>>> implemented.
>>
>> So when, exactly, do you expect to have this implemented then?  Next
>> Thursday?
>
> Let's say, it will be *a* Thursday, just don't expect me to say the
> exact year...

This isn't another issue involving kittens, is it?

-- 
Larry

_____________________________________________________________________

A: Yes.
 > Q: Are you sure?
 >> A: Because it reverses the logical flow of conversation.
 >>> Q: Why is top posting annoying in email?

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