From owner-freebsd-hackers  Sat Feb  9  7:51:29 2002
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Date: Sat, 09 Feb 2002 10:50:48 -0500 (EST)
From: John Baldwin <jhb@FreeBSD.org>
To: Josef Karthauser <joe@tao.org.uk>
Subject: Re: USB "Memorybird" quirks
Cc: Terry Lambert <tlambert2@mindspring.com>,
	"Eugene M. Kim" <gene@nttmcl.com>, Oliver Fromme <olli@secnetix.de>,
	FreeBSD Hardware Mailing List <hardware@FreeBSD.org>,
	FreeBSD Hackers Mailing List <hackers@FreeBSD.org>,
	=?iso-8859-1?Q?G=E9rard_Roudier?= <groudier@free.fr>,
	Oliver Fromme <oliver.fromme@secnetix.de>
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On 09-Feb-02 Josef Karthauser wrote:
> On Sat, Feb 09, 2002 at 01:16:46PM +0100, Oliver Fromme wrote:
> 
>> John Baldwin wrote:
>>  > On 07-Feb-02 Gérard Roudier wrote:
>>  > > A couple of READ/WRITE 6 byte commands are still mandatory for SCSI
>>  > > block
>>  > > devices in order to accomodate softwares as boot software for example
>>  > > that
>>  > > may not be upgradable on systems still in use. Softwares that are
>>  > > maintained should no longer use 6 byte commands, but use the 10 byte
>>  > > commands replacement (for years...).
>>  > 
>>  > Just so you know, I made the umass driver for UFI and ATA translate SCSI
>>  > 6 byte commands to 10 byte commands.  There is a simple function call to
>>  > do the
>>  > change if you wish to do this in for the SCSI transforms as well.
> 
> I'd love the patches if you've got them to hand.

Unless you've spammed the commits I made to umass.c they've been in the tree
for a month or so. :-P  Look at the UFI transform for example:

umass_ufi_transform(struct umass_softc *sc, unsigned char *cmd, int cmdlen,
                    unsigned char **rcmd, int *rcmdlen)
{
        ...
        if (umass_scsi_6_to_10(cmd, cmdlen, rcmd, rcmdlen))
                return (1);
        ...
}

Same code is in the atapi_transform function as well.  Just add those two lines
before the big switch() on the command to the scsi_transform function.

> Joe

-- 

John Baldwin <jhb@FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve!"  -  http://www.FreeBSD.org/

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