Revision as of 03:08, 3 December 2020

This implements the MTP PTP protocol[1].

capmtp

This is "nn::capmtp::ICapmtpRootSession".

Cmd	Name	Notes
0		No input. Returns a session of #ICapmtpInterface

This is "nn::capmtp::ICapmtpInterface".

Cmd	Name	Notes
0		Takes a u32 max folder count, a u32 max image count, a u32 max video count, a transfer memory handle + u32 size and a type-0x5 buffer translated "Other" utf-16 string.
1		No input or output. Unmaps transfer memory from Cmd0, stops "nn.capmtp.CapmtpCommandLoop".
2		No input or output. Starts MTP command handler thread "nn.capmtp.CapmtpCommandLoop".
3		No input or output. Stops "nn.capmtp.CapmtpCommandLoop".
4		No input. Returns true if "nn.capmtp.CapmtpCommandLoop" is running.
5		No input. Returns readable event handle. Signaled when the USB connection status changes.
6		No input. Returns true if a USB connection is established.
7		No input. Returns readable event handle. Signaled when an error occurred during album scan.
8		No input or output. Returns the album scan Result.

Only PTP operation calls 0x1001-0x100A are available.

While this has access to fsp-srv it remains unused. Images and Videos are loaded with caps:a.

Program names are loaded with ns using the transfer memory from Cmd0.

@@ Line 33: / Line 33: @@
 | 6 || || No input. Returns true if a USB connection is established.
 |-
-| 7 || || No input. Returns readable event handle.
+| 7 || || No input. Returns readable event handle. Signaled when an error occurred during album scan.
 |-
-| 8 || || No input or output.
+| 8 || || No input or output. Returns the album scan Result.
 |-
 |}