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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-04-27 15:38:23 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-04-27 15:38:23 +0200
commit9fd91d959f1a19d1bfa46d97cbbbb55641ce26a6 (patch)
tree9938cfef8cce9dd87f48fe40b6bca51a1c737fc5 /Documentation/ide
parent9c391bae6a65bd39962877ad7dc000b600757bbe (diff)
downloadlinux-9fd91d959f1a19d1bfa46d97cbbbb55641ce26a6.tar.gz
ide: add "ignore_cable" parameter (take 2)
Add "ignore_cable" parameter: * "ide_core.ignore_cable=[interface_number]" boot option if IDE is built-in (i.e. "ide_core.ignore_cable=1" to force ignoring cable for "ide1") * "ignore_cable=[interface_number]" module parameter (for ide_core module) if IDE is compiled as module v2: * Add ide_port_apply_params() helper - use it in ide_device_add_all() and ide_scan_port(). * Make it possible to later disable ignoring cable detection by passing "[interface_number]:0" to /sys/module/ide_core/parameters/ignore_cable (however sysfs interface is not enabled yet since it needs some other IDE changes to make it work reliable). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'Documentation/ide')
-rw-r--r--Documentation/ide/ide.txt15
1 files changed, 10 insertions, 5 deletions
diff --git a/Documentation/ide/ide.txt b/Documentation/ide/ide.txt
index 486c699f4ae..829a618c3e9 100644
--- a/Documentation/ide/ide.txt
+++ b/Documentation/ide/ide.txt
@@ -224,11 +224,6 @@ Summary of ide driver parameters for kernel command line
"idex=reset" : reset interface after probe
- "idex=ata66" : informs the interface that it has an 80c cable
- for chipsets that are ATA-66 capable, but the
- ability to bit test for detection is currently
- unknown.
-
"ide=doubler" : probe/support IDE doublers on Amiga
There may be more options than shown -- use the source, Luke!
@@ -251,6 +246,16 @@ are detected automatically).
You also need to use "probe" kernel parameter for ide-4drives driver
(support for IDE generic chipset with four drives on one port).
+To force ignoring cable detection (this should be needed only if you're using
+short 40-wires cable which cannot be automatically detected - if this is not
+a case please report it as a bug instead) use "ignore_cable" kernel parameter:
+
+* "ide_core.ignore_cable=[interface_number]" boot option if IDE is built-in
+ (i.e. "ide_core.ignore_cable=1" to force ignoring cable for "ide1")
+
+* "ignore_cable=[interface_number]" module parameter (for ide_core module)
+ if IDE is compiled as module
+
================================================================================
Some Terminology