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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-04-18 00:46:23 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-04-18 00:46:23 +0200 |
| commit | f74c91413ec6140ee0553180c5f56fdd27c22a2e (patch) | |
| tree | 75ba3f7000ba290dc19b1523b12ab95dc5c7b1ea /Documentation/ide | |
| parent | 50672e5d7486c9ab312432cbe180ac071f1de8e0 (diff) | |
| download | lwn-f74c91413ec6140ee0553180c5f56fdd27c22a2e.tar.gz lwn-f74c91413ec6140ee0553180c5f56fdd27c22a2e.zip | |
ide: add warm-plug support for IDE devices (take 2)
* Add 'struct class ide_port_class' ('ide_port' class) and a 'struct
device *portdev' ('ide_port' class device) in ide_hwif_t.
* Register 'ide_port' class in ide_init() and unregister it in
cleanup_module().
* Create ->portdev in ide_register_port () and unregister it in
ide_unregister().
* Add "delete_devices" class device attribute for unregistering IDE devices
on a port and "scan" one for probing+registering IDE devices on a port.
* Add ide_sysfs_register_port() helper for registering "delete_devices"
and "scan" attributes with ->portdev. Call it in ide_device_add_all().
* Document IDE warm-plug support in Documentation/ide/warm-plug-howto.txt.
v2:
* Convert patch from using 'struct class_device' to use 'struct device'.
(thanks to Kay Sievers for doing it)
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'Documentation/ide')
| -rw-r--r-- | Documentation/ide/warm-plug-howto.txt | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Documentation/ide/warm-plug-howto.txt b/Documentation/ide/warm-plug-howto.txt new file mode 100644 index 000000000000..d5885468b072 --- /dev/null +++ b/Documentation/ide/warm-plug-howto.txt @@ -0,0 +1,13 @@ + +IDE warm-plug HOWTO +=================== + +To warm-plug devices on a port 'idex': + +# echo -n "1" > /sys/class/ide_port/idex/delete_devices + +unplug old device(s) and plug new device(s) + +# echo -n "1" > /sys/class/ide_port/idex/scan + +done |