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→ahid:cd
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
! Cmd || Name || Notes
! Cmd || Name
|-
|-
| 0 || AcquireDevice || Takes an input s32, no output.
| 0 || [[#AcquireDevice]]
|-
|-
| 1 || ReleaseDevice || Takes an input s32, no output.
| 1 || [[#ReleaseDevice]]
|-
|-
| 2 || GetCtrlSession || Takes an input u32, returns an [[#ICtrlSession]].
| 2 || [[#GetCtrlSession]]
|-
|-
| 3 || GetReadSession || Takes an input u32, returns an [[#IReadSession]].
| 3 || [[#GetReadSession]]
|-
|-
| [1.0.0-2.3.0] 4 || GetWriteSession || Takes an input u32, returns an [[#IWriteSession]].
| 4 || [1.0.0-2.3.0] [[#GetWriteSession]]
|}
|}
== AcquireDevice ==
Takes an input s32, no output.
== ReleaseDevice ==
Takes an input s32, no output.
== GetCtrlSession ==
Takes an input u32, returns an [[#ICtrlSession]].
== GetReadSession ==
Takes an input u32, returns an [[#IReadSession]].
== GetWriteSession ==
Takes an input u32, returns an [[#IWriteSession]].
== ICtrlSession ==
== ICtrlSession ==
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
! Cmd || Name || Notes
! Cmd || Name
|-
|-
| 0 || GetString ||
| 0 || GetString
|-
|-
| 1 || GetCodeBook ||
| 1 || GetCodeBook
|-
|-
| 2 || GetReport ||
| 2 || GetReport
|-
|-
| 3 || SetReport ||
| 3 || SetReport
|-
|-
| 4 || GetIdle ||
| 4 || GetIdle
|-
|-
| 5 || SetIdle ||
| 5 || SetIdle
|-
|-
| 6 || GetProtocol ||
| 6 || GetProtocol
|-
|-
| 7 || SetProtocol ||
| 7 || SetProtocol
|-
|-
| 8 || GetDescriptor ||
| 8 || GetDescriptor
|-
|-
| 9 || SetDescriptor ||
| 9 || SetDescriptor
|-
|-
| 10 || GetStateChangeEvent ||
| 10 || GetStateChangeEvent
|-
|-
| 11 || SignalStateChangeEvent ||
| 11 || SignalStateChangeEvent
|-
|-
| 12 || [3.0.0+] Write ||
| 12 || [3.0.0+] Write
|}
|}
All of these use USB [[USB_services|CtrlXfer]], except for cmd10-11 which are event(?) related, and cmd1 which copies 0x4000-bytes from state to output.
All of these use USB [[USB_services|CtrlXfer]], except for GetStateChangeEvent and SignalStateChangeEvent, and GetCodeBook which copies 0x4000-bytes from state to output.
== IReadSession ==
== IReadSession ==
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
! Cmd || Name || Notes
! Cmd || Name
|-
|-
| 0 || Read ||
| 0 || [[#Read]]
|}
|}
=== Read ===
Uses [[USB_services|PostBufferAsync]] etc with the INPUT endpoint. The size must be <=0x1000. The actual transfer size is returned in an output u64. The data is copied from the tmpbuf to the output buffer using the actual-transfer-size.
[3.0.0+] Cmd0 now takes a total of 8-bytes of input.
[3.0.0+] Now takes a total of 8-bytes of input.
== IWriteSession ==
== IWriteSession ==
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
! Cmd || Name || Notes
! Cmd || Name
|-
|-
| 0 || Write || This is the inverse of [[#IReadSession]] cmd0. Uses the OUTPUT endpoint with an input buffer.
| 0 || [[#Write]]
|}
|}
=== Write ===
This is the inverse of [[#IReadSession]] cmd0. Uses the OUTPUT endpoint with an input buffer.
= ahid:hdr =
= ahid:hdr =