All symbols starting with `i' in driver

• IoThreadProc driver/encryptedioqueue.c:298
• IsBootDriveMounted driver/drivefilter.c:1645
• IsBootEncryptionSetupInProgress driver/drivefilter.c:1651
• IsDecoySystemWipeInProgress driver/drivefilter.c:1861
• IsHiddenSystemRunning driver/drivefilter.c:1657
• IsVolumeDevice driver/drivefilter.c:506