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When a service is registered, [[SVC|svcCreatePort]] is used without a port-name. This means that the port is inaccessible via the port SVCs outside of sm-module. See below for getting a session handle for sending commands to services.
When a service is registered, [[SVC|svcCreatePort]] is used without a port-name. This means that the port is inaccessible via the port SVCs outside of sm-module. See below for getting a session handle for sending commands to services.


Processes with PID less than or equal to the number of NATIVE_FIRM built-in modules (fs, sm, pm, pxi, ldr) have access to all services. This value is obtained from [[SVC|svcGetSystemInfo]].
Processes with PID less than or equal to the number of NATIVE_FIRM built-in modules (fs, sm, pm, pxi, ldr) have access to all services. This value is obtained from [[SVC|svcGetSystemInfo]]. Other processes are limited to access services listed in their [[NCCH/Extended_Header#ARM11_Local_System_Capabilities|service access control list]], as passed to [[SRVPM:RegisterProcess]].


Attempting to use [[SRV:GetServiceSession|GetServiceSession]] with a service that the process has access to when that service isn't registered, results in [[SVC|svcSendSyncRequest]] never returning(the exact cause is unknown).
Attempting to use [[SRV:GetServiceHandle|GetServiceHandle]] with a service that the process has access to when that service isn't registered will block until it is registered.


==Service Manager Port "srv:"==
==Service Manager Port "srv:"==
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|}
|}


==Service Manager Process-Manager Port "srv:pm"==
It appears these "port" commands can be used for transferring arbitrary handles, however [[SRV:GetPort|GetPort]] still uses the same service-access-control validation as [[SRV:GetServiceHandle|GetServiceHandle]]. Despite this fact, it appears that a "port" and a service with the same name can coexist independently.
 
==Service Manager Process-Manager Port/Service "srv:pm"==
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
!  Command Header, prior to [[7.0.0-13]]
!  Command Header (port), prior to [[7.0.0-13]]
!  Command Header
!  Command Header (service), post [[7.0.0-13]]
!  Description
!  Description
|-
|-
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|-
|-
!  ID
!  ID
!  Published by
!  Subscribed by
!  Description
!  Description
|-
|-
| 0x100
| 0x100
| This indicates that all processes must terminate: power-off, reboot, or [[FIRM]]-launch.
|
| Not Needed
| This indicates that the recipient must terminate.
|-
| 0x101
| PTM
| NS
| Signaled on sleep mode entry.
|-
| 0x102
| PTM
| NS
| Sleep Mode related?
|-
| 0x103
| PTM
| NS, CSND, NWM, AC, NIM
| Fired on sleep mode entry (Kernel state is modified by PTM after publishing this)
|-
|-
| 0x104
| 0x104
| This indicates that the system is entering sleep mode. (PTM:NotifySleepPreparationComplete needed for this and the following?)
| PTM
| HID
| This indicates that the system is entering sleep mode. (Kernel state is modified by PTM before publishing this)
|-
|-
| 0x105
| 0x105
| PTM
| NS, DSP, CSND, GSP, CODEC, CAMERA, HID, QTM, MIC, IR, NWM, FRIENDS, AC, CECD, ACT, NDM, NIM
| This indicates that the system has exited sleep mode.
| This indicates that the system has exited sleep mode.
|-
| 0x106
| PTM
| NS, MIC, AC, NEWS, CECD, BOSS
| Fired after sleep mode exit.
|-
| 0x107
| PTM
| NWM, CECD, BOSS, NDM, NIM, NEWS
| Unknown.
|-
|-
| 0x108
| 0x108
| error at boot?
| PTM
| GSP, QTM
| System is going to Power Down.
|-
| 0x109
| CFG
| GSP
| CFG block 0x00050001 has been modified, change LCD brightness/PWM settings
|-
| 0x10B
| CFG
| CAMERA
| ?
|-
|-
| 0x10C
| 0x10C
| Unknown.
| PM
|
| A Regular application has started.
|-
|-
| 0x110-0x11F
| 0x110-0x11F
| Unknown. See [[PMApp:LaunchTitle#Launch_Flags|PM launch flags]].
| PM
| NS
| Sent on application exit. See [[PMApp:LaunchTitle#Launch_Flags|PM launch flags]].
|-
|-
| 0x179
| 0x179
| Unknown.
| PM
| PTM, NS
| All processes other than PTM and NS have terminated.
|-
| 0x200
|
| NS
| Signaled just before sleep mode is exited from.
|-
|-
| 0x202
| 0x202
| MCU
| NS
| POWER button pressed
| POWER button pressed
|-
| 0x203
| MCU
| NS
| POWER button held long
|-
|-
| 0x204
| 0x204
| This indicates that the HOME button was pressed.
| MCU
| NS
| HOME button pressed
|-
|-
| 0x205
| 0x205
| HOME button pressed
| MCU
| NS
| HOME button released
|-
|-
| 0x206
| 0x206
| This is signaled by [[NWMEXT:ControlWirelessEnabled]].
| MCU / NWM
| NWM
| The physical Wi-Fi slider state changed
|-
|-
| 0x207
| 0x207
|
| MENU
| SD card inserted
| SD card inserted
|-
|-
| 0x208
| 0x208
|
| MENU
| Game cartridge inserted
| Game cartridge inserted
|-
|-
| 0x209
| 0x209
|
| NS, MENU
| SD card removed
| SD card removed
|-
|-
| 0x20A
| 0x20A
|
| NS, MENU
| Game cartridge removed
| Game cartridge removed
|-
|-
| 0x20B
| 0x20B
|
| NS, MENU
| Game cartridge inserted or removed
| Game cartridge inserted or removed
|-
| 0x20C
| MCU
| PTM
| Published on a fatal hardware condition, when the MCU WDT triggers, ptm throws fatal error F960D407 in receipt of this
|-
| 0x20D
| MCU
| GSP
| Charger plugged out.
|-
| 0x20E
| MCU
| GSP
| Charger plugged in.
|-
| 0x20F
| MCU
|
| Published by the mcu module when (bitmask & 0x8000) is true (started charging). This bitmask is obtained by reading i2c register 0x10.
|-
| 0x210
| MCU
|
| Published by the mcu module when (bitmask & 0x4000) is true (stopped charging). This bitmask is obtained by reading i2c register 0x10.
|-
| 0x211
| PTM
|
| Battery very low (5%)
|-
| 0x212
| PTM
|
| Battery low (10%)
|-
| 0x213
| NS
| CODEC, HID, GSP, CAMERA, MIC, NDM, QTM, PTM
| Shell opened.
|-
| 0x214
| NS
| CODEC, HID, GSP, CAMERA, MIC, NDM, QTM, PTM.
| Shell closed.
|-
| 0x300
| AC
| NDM, MENU
| Signaled after sleep mode exit and during system boot.
|-
| 0x301
| AC
| FRIENDS, NDM
| Signaled just before sleep mode is exited from.
|-
|-
| 0x302
| 0x302
| Unknown. Signaled by nwm module.
| NWM
| NDM, SOCKET, FRIENDS, AC
| WiFi is turning off, triggered by using the WiFi switch on O3DS models and the toggle in the N3DS HOME menu (maybe disconnecting from any connected networks?)
|-
| 0x303
| NWM
| CECD, NDM
| WiFi has turned off. (fires shortly after 0x302)
|-
| 0x304
| NWM
| CECD, NDM, SOCKET
| WiFi was turned on.
|}
|}
[[Category:Services]]
Retrieved from "https://www.3dbrew.org/wiki/Services"