Re: "logical unit communication failure" c2scan NEC ND-4550A 1.07
Bill Davidsen <davidsen@tmr.com> wrote:
> >The onvious fix wouild have been to change the kernel to correctly require
> >write permission on a fd for the SD_IO ioctl.
> >
> >
> Think about that one for a minute... you need to write the "seek" and
> "send data" commands to use the CD at all, at least if you use the sg
> interface. So just blindly blocking write would leave sg users unable to
> use the device at all. You really need a bit of cleverness here, just
> checking write permissions isn't enough.
This is the second mail from yo that makes me believe you are confused.
I am talking on read vs. read/write permission on the FILE DESCRIPTOR
that is used for the SG_IO ioctl.
This is unrelated to your writing.
If you like to comment on this LInux bug, please first inform yourself
correctly on the bug itself.
Jörg
--
EMail:joerg@schily.isdn.cs.tu-berlin.de (home) Jörg Schilling D-13353 Berlin
js@cs.tu-berlin.de (uni)
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