Mailboxes

Draft

This page is a stub for completion by someone who knows more than I about the subject.

Overview

Mailboxes facilitate communication between the ARM and the VideoCore. This page lists the available mailboxes. For a description of the procedure for accessing a mailbox, see [here](Accessing mailboxes).

Mailbox details

The following lists the currently defined mailboxes, with links to pages describing the format of the messages.

0: Framebuffer access
1:
2:
3:
4:
5:
6:
7:
8: [Property tag request (ARM -> VC)](Mailbox property interface)
9: Property tag request (VC -> ARM)

Mailbox registers

Mailbox Description                       Read  Write  Status  Config
   0    Framebuffer access                0x00  0x20    0x18    0x1C
   1
   2
   3
   4
   5
   6
   7
   8    Property tag request (ARM -> VC)
   9    Property tag request (VC -> ARM)