Changes

== Registers ==

== Registers ==

SMC has two types of registers: Read/write and command-based. Read/write registers operate by having the register number written (1 byte), followed by either another written byte, or a 1 byte read. Command-based registers perform their action just by writing the register number (1 byte). When attempting to read a command-based register, it will read as 0xFF. Registers wrap around after 0x7F.

SMC has two types of registers: Read/write and command-based. Read/write registers operate by having the register number written (1 byte), followed by either another written byte, or a 1 byte read. Command-based registers perform their action just by writing the register number (1 byte). When attempting to read a command-based register, it will read as 0xFF. Some registers will change themselves to read 0x97 if you attempt to write to them.

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| 0x02 || Command || ODD Eject Request

| 0x02 || Command || ODD Eject Request

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| 0x0D || Read/Write? || 00 on power on?

| 0x8D || Read/Write? || 00 on power on?

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| 0x0E || Read/Write? || 00 on power on?

| 0x8E || Read/Write? || 00 on power on?

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| 0x0F || Read/Write? || 00 on power on?

| 0x8F || Read/Write? || 00 on power on?

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| 0x10 || Command || ON LED on

| 0x10 || Command || ON LED on

| 0x22 || Command || drc_wifi_rst

| 0x22 || Command || drc_wifi_rst

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| 0x30 || Read/Write || TimerCounter

| 0x30 || Read/Write || TimerCounter, changes to 0x97 on write.

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| 0x31 || ? || ?

| 0x31 || ? || ? Changes to 0x97 on write.

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| 0x32 || ? || ?

| 0x32 || ? || ? Changes to 0x97 on write.

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| 0x40 || Read/Write || ProgramRevision (val: 0xC5)

| 0x40 || Read/Write || ProgramRevision (val: 0xC5)

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| 0x41 || Read/Write || SystemEventFlag

| 0x41 || Read/Write || SystemEventFlag, read-only

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| 0x42 || Read/Write || ? (val: 0x0B)

| 0x42 || Read/Write || ?, read-only (val: 0x0B, 0x0A?)

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| 0x43 || Read/Write || USB Power (bitmask; front USB: 0x1, rear USB: 0x2)

| 0x43 || Read/Write || USB Power (bitmask; front USB: 0x1, rear USB: 0x2)

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| 0x44 || Read/Write || NotificationLED (val: 0x20)

| 0x44 || Read/Write || NotificationLED, current LED state. (bitmask: 0x97?)

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| 0x45 || Read/Write || PowerFailureState (val: 0x08)

| 0x45 || Read/Write || PowerFailureState (val: 0x08)

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| 0x46 || Read/Write || WifiRstCtrl (val: 0x00)

| 0x46 || Read/Write || WifiRstCtrl (val: 0x00), changes to 0x97 on write.

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| 0x47 || Read/Write || ? (val: 0xFF)

| 0x47 || Read/Write || ? not writable (val: 0xFF)

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| 0x48 || Read/Write || ? (val: 0x0F)

| 0x48 || Read/Write || ? not writable (val: 0x0F)

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| 0x60 || Read/Write || LAPSSetting (val: 0x00)

| 0x60 || Read/Write || LAPSSetting (val: 0x00), changes to 0x97 on write.

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| 0x61~0x70 || Read/Write || SystemError (val: 0x00)

| 0x61~0x70 || Read/Write || SystemError, read-only (val: 0x00)

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| 0x62~0x70 || Read/Write || ? (val: 0x00)

| 0x62~0x70 || Read/Write || ? (val: 0x00)

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| 0x71 || Command? || Blinks the drive LED?

| 0x71 || Command? || Blinks the drive LED? Causes 0x1C bytes to read as 0xFF.

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| 0x01 || SMC_WAKE1

| 0x01 || SMC_WAKE1

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