Date: Mon, 22 May 2006 11:51:19 +0200 From: =?ISO-8859-1?Q?S=F8ren_Schmidt?= <sos@deepcore.dk> To: Jeremie Le Hen <jeremie@le-hen.org> Cc: cvs-src@FreeBSD.ORG, src-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG, =?ISO-8859-1?Q?S=F8ren_Schmidt?= <sos@FreeBSD.ORG> Subject: Re: [fbsd] cvs commit [HEAD] src/sys/dev/ata ata-usb.c Message-ID: <44718997.3010600@deepcore.dk> In-Reply-To: <20060522093739.GP39460@obiwan.tataz.chchile.org> References: <200603101908.k2AJ8vd3020765@repoman.freebsd.org> <20060522093739.GP39460@obiwan.tataz.chchile.org>
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Jeremie Le Hen wrote: > Hi, Søren, > > On Fri, Mar 10, 2006 at 07:08:52PM +0000, Søren Schmidt wrote: >> sos 2006-03-10 19:08:52 UTC >> >> FreeBSD src repository >> >> Added files: >> sys/dev/ata ata-usb.c >> Log: >> Module that adds support for using USB storage devices through the >> ATA framework. Mainly written to be able to use USB Flash keys. >> This is work in progress so use with care :) >> Doesn't need CAM and cannot coexist with umass.c > > I am a bit late on this. What are the advantages or drawbacks to use > atausb instead of umass ? I haven't found any HEADS UP about it, and > the CURRENT release notes only mention its existence without further > explanation. The main reason this exists is that I need access to USB flash memory on small embedded systems where I cannot afford to have CAM+SCSI layers in the kernel due to strick size limitations. A nice side effect is that I now also can use external USB disks and CDROM/DVD drives with the same benefits. I could also much easier support those USB storage devices that just present the ATA register file as is, but so far I havn't been able to locate any of those. Drawbacks is that it has not been around for so long so bugs etc might lurck in there as usual... -Søren
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