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

[Nathan H. <hj...@me...>]

Take a look at libscg. It is a cross-platform SCSI library that supports OS X. It is used by cdrtools.

-Nathan

> On Jan 17, 2016, at 1:34 AM, Tao Wang <twa...@gm...> wrote:
> 
> 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
> 
> 
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