set items reported by ioctl_storage_query_property

NTDEV
1

Hi,

So I know of ioctl_storage_query_property … but what are the IOCTL’s that set those properties, such as TRIM. You can query if TRIM is enabled/disabled, but how does the user mode app change that setting?

TIA!!

2

Looks like at least W7 doesn’t allow changing settings per device or per volume. The fsutil DisableDeleteNotification seems to be only a system wide Registry setting. Would a file system driver need to continually check that registry value or does fsutil send a broadcast message or something else to let a file system driver know the value changed???

3

The queried properties in IOCTL_STORAGE_QUERY_PROPERTY are physical properties of the drive. They can’t be set, because they’re dependent on the actual device.

Peter
OSR