Standards

Introduction

Your camera is compatible with these standards or built on top of them, let's see if there are public documents about them...

because your camera has code that implement the following.

E-TTL (Flash)

See http://chdk.setepontos.com/index.php/topic,4988.0.html

Multimedia files

• Jpeg and CR2
  • ExifTool Canonand EXIF pages
  • Canon Raw v2
  • EXIF 2.21
  • EXIF 2.3 : CIPA DC-008-2010
• Video
  • AVI container
  • H264 codec
  • MOV container: QuickTime file format
• DCF: CIPA DC-009-2010

FAT filesystem

• FAT (Ecma-107.pdf)
• exFAT

Transfert and control protocols

PTP

• ISO 15740:2008 (CHF 208)
• PIMA15740-2000.PDF
• CHDK PTP interface
• PTP-IP: CIPA DC-005-2005

PictBridge

• CIPA DC-01:2003 Rev2
• CIPA introduction

Direct Print Object Format (DPOF)

• Summary of DPOF v1.10

HDMI 1.3

• HDMI 1.3 WhitePaper Do we know which HDMI chip is used in our camera ?
• Consumer Electronics Control (CEC)

other Hardware

• See Datasheets for CPU and Audio chip information
• 3 chips "Samsung K4T1G164QE-HCE6" in the 7D: 1Gb E-die DDR2 SDRAM
• "Samsumg K8P2815UQB" : Flash Memory 32Mb B-die Page NOR
• FPGA : Xilinx Spartan 3E. just a guess, but see this messageon CHDK forum.
• DIGIC4: Digging Into 'DIGIC 4' Image Processor
• SD/SDHC/SDXC (550D/60D)