Messages in this thread | | | Subject | sysfs method for registering/unregistering ide devices ? | From | Paul Ionescu <> | Date | Sat, 13 Mar 2004 17:25:10 +0200 |
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Hello,
Is there any possibility to unregister/scan ide devices with sysfs ? I've searched lkml and linux-ide list archives and I didn't found any answers. Is there any sysfs file like /sys/..../registered, where you could echo 0 or 1 if you want to register or unregister a specific interface ?
Till now, I used hdparm -U/-R option for this task. While this is still available in kernel 2.6, the implementation of HDIO_UNREGISTER_HWIF and HDIO_SCAN_HWIF seems more like a hack than a sane implementation. Reasons: Unregister and then register the same device, and you will have different files for it int procfs and sysfs. For unregistering or registering a device, you need at least a valid block device. So I cannot unregister all my drives, and register them again (or at least not at the same time).
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