diff options
| author | Douglas Gilbert <dgilbert@interlog.com> | 2011-06-09 08:27:07 +0400 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2011-06-29 21:14:25 +0400 |
| commit | 2a350cab9daf9a46322d83b091bb05cf54ccf6ab (patch) | |
| tree | 086520b795dd7dab8b8dfdb62edf9a354965b113 /drivers/scsi/ses.c | |
| parent | 545a876e4b4f261218be2c09b46dfff4ee95be31 (diff) | |
| download | linux-2a350cab9daf9a46322d83b091bb05cf54ccf6ab.tar.xz | |
[SCSI] ses: requesting a fault indication
Noticed that when the sysfs interface of the SCSI SES
driver was used to request a fault indication the LED
flashed but the buzzer didn't sound. So it was doing
what REQUEST IDENT (locate) should do.
Changelog:
- fix the setting of REQUEST FAULT for the device slot
and array device slot elements in the enclosure control
diagnostic page
- note the potentially defective code that reads the
FAULT SENSED and FAULT REQUESTED bits from the enclosure
status diagnostic page
The attached patch is against git/scsi-misc-2.6
Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>
Cc: stable@kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/ses.c')
| -rw-r--r-- | drivers/scsi/ses.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/scsi/ses.c b/drivers/scsi/ses.c index eb7a3e85304f..eba183c428cf 100644 --- a/drivers/scsi/ses.c +++ b/drivers/scsi/ses.c @@ -160,6 +160,10 @@ static unsigned char *ses_get_page2_descriptor(struct enclosure_device *edev, return NULL; } +/* For device slot and array device slot elements, byte 3 bit 6 + * is "fault sensed" while byte 3 bit 5 is "fault reqstd". As this + * code stands these bits are shifted 4 positions right so in + * sysfs they will appear as bits 2 and 1 respectively. Strange. */ static void ses_get_fault(struct enclosure_device *edev, struct enclosure_component *ecomp) { @@ -181,7 +185,7 @@ static int ses_set_fault(struct enclosure_device *edev, /* zero is disabled */ break; case ENCLOSURE_SETTING_ENABLED: - desc[2] = 0x02; + desc[3] = 0x20; break; default: /* SES doesn't do the SGPIO blink settings */ |