there also similar things in 550d 1.0.8 :
1. Barcode code
2cd9c BarRecData:%s
2cdac BarData:%s
2cde4 BCR ClearCode:%s
2ce0c BarCodeDataSizeOver:%ld,%ld
(offsets are from 0xff010000)
2. Studio mode
StudioOn function at 0xFF2113BC
and these properties:
1f1114 PROP_PHOTO_STUDIO_MODE (%d)
1f1270 ***** PROP_PHOTO_STUDIO_SETUP_PASSWORD size = 0[%d]
1f12b4 PROP_PHOTO_STUDIO_CLEAR_BAR_CODE_DATA (%d)
1f12e0 PROP_PHOTO_STUDIO_SEPARATE_LANG (%d)
1f1308 PROP_PHOTO_STUDIO_RELEASE_LOCK (%d)
1f132c PROP_PHOTO_STUDIO_BAR_CODE_DATA (%d)
1f1358 ***** PROP_PHOTO_STUDIO_BAR_CODE_DATA size = 0[%d]
Arm.Indy