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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-04-27 09:38:23 -0400
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-04-27 09:38:23 -0400
commit9fd91d959f1a19d1bfa46d97cbbbb55641ce26a6 (patch)
tree9938cfef8cce9dd87f48fe40b6bca51a1c737fc5 /Documentation/ide
parent9c391bae6a65bd39962877ad7dc000b600757bbe (diff)
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 486c699f4aea..829a618c3e93 100644
--- a/Documentation/ide/ide.txt
+++ b/Documentation/ide/ide.txt
@@ -224,11 +224,6 @@ Summary of ide driver parameters for kernel command line
224 224
225 "idex=reset" : reset interface after probe 225 "idex=reset" : reset interface after probe
226 226
227 "idex=ata66" : informs the interface that it has an 80c cable
228 for chipsets that are ATA-66 capable, but the
229 ability to bit test for detection is currently
230 unknown.
231
232 "ide=doubler" : probe/support IDE doublers on Amiga 227 "ide=doubler" : probe/support IDE doublers on Amiga
233 228
234There may be more options than shown -- use the source, Luke! 229There may be more options than shown -- use the source, Luke!
@@ -251,6 +246,16 @@ are detected automatically).
251You also need to use "probe" kernel parameter for ide-4drives driver 246You also need to use "probe" kernel parameter for ide-4drives driver
252(support for IDE generic chipset with four drives on one port). 247(support for IDE generic chipset with four drives on one port).
253 248
249To force ignoring cable detection (this should be needed only if you're using
250short 40-wires cable which cannot be automatically detected - if this is not
251a case please report it as a bug instead) use "ignore_cable" kernel parameter:
252
253* "ide_core.ignore_cable=[interface_number]" boot option if IDE is built-in
254 (i.e. "ide_core.ignore_cable=1" to force ignoring cable for "ide1")
255
256* "ignore_cable=[interface_number]" module parameter (for ide_core module)
257 if IDE is compiled as module
258
254================================================================================ 259================================================================================
255 260
256Some Terminology 261Some Terminology