Re: [libusb] How to use USB SCSI Pass Through Interface in libusb?

[Tao W. <twa...@gm...>]

Hi, Alan Stern,

Thanks for your reply. I checked sg3_utils project, OS X is not supported,
which is the main reason why I'm looking for another cross-platform
solution.

If the libusb is not the way to go, I don't know what should I do next,
other than writing a SCSI Pass-through kernel driver for OS X, which might
be too much for me.

Anyway, thanks for your help, I will keep looking.

Best Regards,
Tao Wang

On 17 January 2016 at 03:49, Alan Stern <st...@ro...> wrote:

> On Sat, 16 Jan 2016, Tao Wang wrote:
>
> > Hi, everyone,
> >
> > I'm thinking about a cross platform solution to communicate with Pentax
> > camera, which using USB (Mass Storage) SCSI Pass-Through Interface, with
> > 'F0' vendor specific SCSI commands.
>
> SCSI Pass-Through has nothing to do with USB.  You can use it with any
> SCSI device that supports it, USB or not.
>
> > The current solution is via '/sys/class/scsi_generic' with `ioctl(fd,
> > SG_IO, xxx)`, but it's not a portable solution.
>
> Check out the sg3_utils package.  It has programs for both Linux and
> Windows, maybe other operating systems as well.
>
> > I didn't find any example of how to use SPTI via libusb. Can anyone give
> me
> > some help about how to do it? Thanks.
>
> There is no good way to do it using libusb.  Libusb simply isn't the
> appropriate tool for this purpose.
>
> Alan Stern
>
>