I2C Services

I2C Service Names

• "i2c::MCU"
• "i2c::CAM"
• "i2c::LCD"
• "i2c::DEB"
• "i2c::HID"
• "i2c::IR"
• "i2c::EEP"
• "i2c::NFC" (Only available via the New3DS i2c sysmodule)
• "i2c::QTM" (Only available via the New3DS i2c sysmodule)

I2C Service

Command Header	Available since system-version	Description
0x00010100		SetRegisterBits8 (u8 devid, u8 regid, u8 regdata, u8 mask)
0x0002....		EnableRegisterBits8 (u8 devid, u8 regid, u8 enablemask)
0x000300C0		DisableRegisterBits8 (u8 devid, u8 regid, u8 disablemask)
0x00040102		MultiSetRegisterBits16 (u16 regid, u16 regdata, u16 mask, devcount, u8* devidlistptr)
0x0005....		WriteRegister8 (u8 devid, u8 regid, u8 regdata)
0x0006....		WriteCommand8 (u8 devid, u8 cmdid)
0x0007....		WriteRegister16 (u8 devid, u16 regid, u16 regdata)
0x000800C2		MultiWriteRegister16 (u16 regid, u16 regdata, devcount, u8* devidlistptr)
0x0009....		u8 ReadRegister8 (u8 devid, u8 regid)
0x000A....		u16 ReadRegister16 (u8 devid, u16 regid)
0x000B00C2		WriteRegisterBuffer8 (u8 devid, u8 regid, buffersize, (buffersize << 14) | 0x402, u8* bufferptr)
0x000C00C2		WriteRegisterBuffer16 (u8 devid, u16 regid, buffersize, (buffersize << 15) | 0x402, u16* bufferptr)
0x000D00C0		ReadRegisterBuffer8 (u8 devid, u8 regid, buffersize, +0x180: (buffersize << 14) | 2, +0x184: u8 bufferptr)
0x000E00C2		WriteRegisterBuffer8_again? (u8 devid, u8 regid, buffersize, u8* bufferptr)
0x000F....
0x0010....
0x001100C2		ReadRegisterBuffer(u8 devid, u16 regid, buffersize, u8 *buff)
0x001200C2		WriteRegisterBuffer(u8 devid, u16 regid, buffersize, u8 *buff)
0x00130040	8.0.0-18	(u8 inval) Writes an output u8 to cmdreply[2].
0x00140082	8.0.0-18	(u8 devid, u32 buffersize, (buffersize << 14) | 0x402, bufferptr)
0x00150080	8.0.0-18	(u8 devid, u32 buffersize, +0x180: (buffersize << 14) | 2, +0x184: bufferptr)