Re: Proble, with new ata compatibility links for libata devices

[Matthias Schwarzott <zzam@gentoo.org>]

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On Freitag, 27. April 2007, Matthias Schwarzott wrote:
> Hi!
>
> Since the commit of the ata compatibility links, I get this error message
> at every system-start:
> ata_id main: HDIO_GET_IDENTITY failed for '/dev/.tmp-8-0'
>
> Looking up the device, it is /dev/sda.
> It is this rule:
>
> KERNEL=="sd*[!0-9]|sr*", ENV{ID_VENDOR}=="ATA", PROGRAM="ata_id $tempnode",
> ENV{ID_ATA_COMPAT}="$result"
>
> Is it really intended to call ata_id on libata devices?
> Or is that a kernel error (using version 2.6.20-gentoo).
>
> Or is this just a missing patch, only applied to suse kernels?
>
To answer to me:
The patch seems to be included in Kernel 2.6.21.

Attached patch just makes ata_id ignore the error: Unsupported ioctl 
(errno==ENOTTY).

 Matthias

-- 
Matthias Schwarzott (zzam)

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diff --git a/extras/ata_id/ata_id.c b/extras/ata_id/ata_id.c
index aedebff..56e4ddc 100644
--- a/extras/ata_id/ata_id.c
+++ b/extras/ata_id/ata_id.c
@@ -120,7 +120,9 @@ int main(int argc, char *argv[])
 	}
 
 	if (ioctl(fd, HDIO_GET_IDENTITY, &id)) {
-		err("HDIO_GET_IDENTITY failed for '%s'", node);
+		// older libata (kernel < 2.6.21) did not implement that ioctl
+		if (errno!=ENOTTY)
+			err("HDIO_GET_IDENTITY failed for '%s'", node);
 		rc = 3;
 		goto close;
 	}

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