gronodandDevin <158243242+devin-ai-integration[bot]@users.noreply.github.com>
acf5d03277
Two latent bugs kept all SMC telemetry dead:
- IOServiceMatching("AppleSMCClient") never matched — the kernel service
is AppleSMC, so openWithError always failed and every SMC-gated provider
(thermal, fan, component, power) reported unavailable.
- #pragma pack(1) shrank SMCKeyData_t to 74 bytes; the SMC user client
requires the canonical 80-byte layout and rejected every
IOConnectCallStructMethod with kIOReturnBadArgument. Verified live on
Intel hardware: unpacked calls succeed and return key data.
Also sources the alert engine's batteryLevel from the SMC-independent
batteryHealth path (currentCapacity/maxCapacity), falling back to the
power provider.
Generated with [Devin](https://devin.ai)
Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>
76 lines
1.6 KiB
Objective-C
76 lines
1.6 KiB
Objective-C
#ifndef MMSMCDefines_h
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#define MMSMCDefines_h
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#import <Foundation/Foundation.h>
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#import <IOKit/IOKitLib.h>
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#define KERNEL_INDEX_SMC 2
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// SMC Call Selectors
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#define kSMCUserClientOpen 0
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#define kSMCUserClientClose 1
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#define kSMCHandleYPCEvent 2
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#define kSMCReadKey 5
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#define kSMCWriteKey 6
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#define kSMCGetKeyFromIndex 8
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#define kSMCGetKeyInfo 9
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typedef struct {
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unsigned char major;
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unsigned char minor;
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unsigned char build;
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unsigned char reserved[1];
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unsigned short release;
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} SMCVersion;
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typedef struct {
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uint16_t version;
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uint16_t length;
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uint32_t cpuPLimit;
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uint32_t gpuPLimit;
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uint32_t memPLimit;
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} SMCPLimitData;
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typedef struct {
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IOByteCount dataSize;
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UInt32 dataType;
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UInt8 dataAttributes;
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} SMCKeyInfoData;
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typedef struct {
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UInt32 key;
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SMCVersion vers;
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SMCPLimitData pLimitData;
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SMCKeyInfoData keyInfo;
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UInt8 result;
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UInt8 status;
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UInt8 data8;
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UInt32 data32;
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UInt8 bytes[32];
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} SMCKeyData_t;
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typedef struct {
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char key[5];
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UInt32 dataSize;
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char dataType[5];
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UInt8 bytes[32];
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} SMCVal_t;
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static inline UInt32 MMSMCToFourCharCode(const char * _Nonnull str) {
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UInt32 code = 0;
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for (int i = 0; i < 4 && str[i] != '\0'; i++) {
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code = (code << 8) | (UInt8)str[i];
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}
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return code;
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}
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static inline void MMSMCFromFourCharCode(UInt32 code, char * _Nonnull outStr) {
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outStr[0] = (char)((code >> 24) & 0xFF);
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outStr[1] = (char)((code >> 16) & 0xFF);
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outStr[2] = (char)((code >> 8) & 0xFF);
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outStr[3] = (char)(code & 0xFF);
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outStr[4] = '\0';
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}
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#endif /* MMSMCDefines_h */
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