Date: Thu, 27 May 1999 11:44:03 +0200 From: Thierry Herbelot <Thierry.Herbelot@alcatel.fr> To: dburr@pobox.com, questions@freebsd.org Subject: [Fwd: Workaround: Re: acd1: rezero failed] (was : "acd0: rezero failed" when burning on JVC RWD RW2224 CD-RW with 3.1_R) Message-ID: <374D13E3.D22AC018@telspace.alcatel.fr>
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The following may help you (it is obviously available from the archives
....)
The patch may be included in the up-to-date -Stable.
TfH
Gregory Bond wrote:
>
> With a bit more poking around, I have made the HP 8100 work with the acd
> driver. For some reason, the 8100 dislikes the ATAPI REZERO_UNIT command that
> acdopen() sends when in write mode. Yet it seems the HP 7200 has no problems
> with the same code. I've asked HP for any hints as to why the 8100 is
> different but they have not yet had time to reply (and I don't expect much joy,
> frankly).
>
> The following patch makes the CD-R/CD-RW bit work (as far as I can tell from
> my brief testing). I don't know all that much about the nitty-gritty of
> ATAPI so I don't know if this has any deadly consequences....
>
> [btw: submitted as pr kern/dunno-yet]
>
> *** ./sys/i386/isa/atapi-cd.c.dist Mon Jan 4 10:13:22 1999
> --- ./sys/i386/isa/atapi-cd.c Mon Mar 15 16:51:44 1999
> ***************
> *** 399,405 ****
> /* read/write */
> if (acd_rezero_unit(cdp)) {
> printf("acd%d: rezero failed\n", lun);
> ! return EIO;
> }
> } else {
> /* read only */
> --- 399,405 ----
> /* read/write */
> if (acd_rezero_unit(cdp)) {
> printf("acd%d: rezero failed\n", lun);
> ! /* return EIO; */
> }
> } else {
> /* read only */
>
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