android_kernel_samsung_msm8976/Documentation/ide/warm-plug-howto.txt


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

NOTE: please make sure that partitions are unmounted and that there are
no other active references to devices before doing "delete_devices" step,
also do not attempt "scan" step on devices currently in use -- otherwise
results may be unpredictable and lead to data loss if you're unlucky
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> 2008-04-17 22:46:23 +00:00
			`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`
ide: update warm-plug HOWTO Reported-by: Bruno Prémont <bonbons@linux-vserver.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> 2009-01-06 16:21:00 +00:00
			`NOTE: please make sure that partitions are unmounted and that there are`
			`no other active references to devices before doing "delete_devices" step,`
			`also do not attempt "scan" step on devices currently in use -- otherwise`
			`results may be unpredictable and lead to data loss if you're unlucky`