Is there SCSI ioctl() support in cygwin? Where is sg.h?

Larry Hall (Cygwin)
Thu Jun 27 16:03:00 GMT 2013

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?



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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