That worked. Is there documentation showing what is and is not allowed in .iig files? Is the case similar with new class member functions? i.e. void setButton(uint8_t buttonToSet)?

To the question you didn't understand, i'll try to explain a bit better. The entitlements in the app request a certain set. In order for the app/driver to run, the identity/profile retrieved from Apple needs to have the same set to grant. can the apple side have MORE than requested and have everything still work fine, or do both sides need to match exactly? example. App.entitlements requests a, b, and c. Identity with Profile from Apple Developer page grants a, b, c, d, and e. Will it all still run OK, or does the Identity need to disable the d and e grants?

I went back and put everything back to Xcode managed for provisioning profile, made sure everything matched, and still getting errors when trying to load the driver. The app itself loads fine and it installs the driver without issue. Again, any help would be appreciated. Here is one such collection of errors from the system log as an example (with edits changing bundleId and paths, as well as removing stuff so it would allow me to post this): ReportCrash: ...(Code Signature Invalid)","incidentID":"someUUID","logwritten":0,"process":"com.me.App.Driver","terminationReasonExceptionCode":"0x1","terminationReasonNamespace":"CODESIGNING"... taskgated-helper Disallowing com.me.App.Driver because no eligible provisioning profiles found amfid /path/to/com.me.App.Driver.dext/com.me.App.Driver signature not valid: -67671 kernel mac_vnode_check_signature: /path/to/com.me.App.Driver.dext/com.me.App.Driver: code signature validation failed fatally: When validating /path/to/com.me.App.Driver.dext/com.me.App.Driver:   Code has restricted entitlements, but the validation of its code signature failed. Unsatisfied Entitlements: (nothing in the list of unsatisfied Entitlements) also kernel: proc 48767: load code signature error 4 for file "com.me.App.Driver"

For the provisioning profile, the capabilities include the 3 DriverKit entitlements I request as well two others that i dont request (In-App Purchase and Keychain Sharing). Entitlements for the profile also include the three i requested and a handful of others that i haven't but look 'standard' (i.e. get-task-allow, application-identifier, and other more generic sounding ones). The embedded profile (for me it shows up as embedded.mobileprovision could this be the issue? This is how Xcode 14 set this up for me...) it shows the entitlements as I expect. As for the other thread, capabilities match as expected. I even verified that the certificate signatures matched as per one of eskimo's other posts about troubleshooting code signing.

The more i'm thinking about it, I'm wondering if the DriverKit template is just naming the provisioning profile as it expects for iOS, instead of MacOS (as mine is named embedded.mobileprovision). People are saying the file should have an .embededprofile extension; what should the filename be?

OK, then I'm Still at a loss. I just created a brand new project, just in case something is wonky with the other one. Leaving everything XCode managed, this time on my M1 mini instead of my Intel MacBook Pro. SwiftUI app instead of XIB, once again with an activate button and deactivate that make the appropriate OSSystemExtensionRequests. The Second target added via File->New->Target is the DriverKit group's Driver project template. Gave everything the same entitlements as above (though i probably dont need the HID ones, as i'm not even changing the default IOService type or any code in the driver other than adding an entitlements file and setting that file as Code Signing Entitlements under Build Settings->Signing->Code Signing Entitlements. From everything You have been telling me, that should work, unless i'm just missing something in my frustration. App runs fine, activating the extension via the app runs fine, but still errors actually running the extension. systemextensionctl list shows it should be loading: * * NMX3RG6P6L com.eklynx.TestHidService.TestService (1.0/1) com.eklynx.TestHidService.TestService [activated enabled] But once again, logging still shows the app is being killed due to code signing. /Library/SystemExtensions/AC89C292-DA43-407D-9BDF-B832D5BC16F6/com.eklynx.TestHidService.TestService.dext/com.eklynx.TestHidService.TestService not valid: Error Domain=AppleMobileFileIntegrityError Code=-413 "No matching profile found"... mac_vnode_check_signature: /path/to/com.eklynx.TestHidService.TestService.dext/com.eklynx.TestHidService.TestService: code signature validation failed fatally: When validating /path/to/com.eklynx.TestHidService.TestService.dext/com.eklynx.TestHidService.TestService:   Code has restricted entitlements, but the validation of its code signature failed. Unsatisfied Entitlements: proc 15887: load code signature error 4 for file "com.eklynx.TestHidService.TestService" Error occurred while handling request "DextLaunch(arguments: Optional(["Check In Token": 483, "CFBundleIdentifier": com.eklynx.TestHidService.TestService, "kOSBundleDextUniqueIdentifier": <removed>, "DriverKit Reslide Shared Cache": 0, "Driver Extension Server Name": com.eklynx.TestHidService.TestService, "Driver Extension Server Tag": removed]))": Error Domain=NSPOSIXErrorDomain Code=8 "Exec format error"

Started from scratch one more time noting every small detail. Initially after adding the driverkit target, the signing profile was not set; building gave the error error: Embedded binary is not signed with the same certificate as the parent app. Verify the embedded binary target's code sign settings match the parent app's. Looking at the settings, the Provisioning profile is set to Xcode Managed Profile with Signing Certificate set to None. I unchecked and re-checked the 'Automatically manage signing` and set my developer profile to fix this. Was this the correct way to proceed? @sscmith_c: Since you have a working setup do you mind telling what are your signing settings are set to for the DriverKit extension?

Wow, that was it. Downloaded the new RC1, and my test project shows as running when queried with ps. Thank you!

And in further investigation, looks like the newest version is at https://github.com/apple-oss-distributions/IOHIDFamily/tree/main I opened the project and tried to build it, but it is looking for a macos.internal sdk which i can't find anywhere. I'm guessing this is an Apple-only thing. Hopefully someone has more info on this?

More troubleshooting: running the following line: let report = try await deviceClient!.dispatchGetReportRequest(type: .input, id: HIDReportID(rawValue: 0x80)) gives me an error of type CoreHID.HIDDeviceError.unknown with error code of 0xE0005000. I cannot find at all what that specific code corresponds to, and the error description is the generic unknown error text.

OK, broke it down with two simple examples. Note that on first run you need to enable Input Monitoring for the application under Privacy settings. For CoreHID, i tried two different ways, both error with the same result. For IOKit, it works just fine. Also attached is the full Device report descriptors for the mouse. Logitech G600 Gaming Mouse HID Report Descriptors HIDExample_CoreHID - errors HIDExample_IOKit.swift - Works

And I can confirm that input reports are being received just fine through a Windows app using the code attached. So there is something in CoreHID that is giving an error when trying to get this report. (using dispatchGetReportRequest in CoreHID just doesn't get any reports). C# Windows 10/11 example that works. Example C# output showing input reports working.

Ah, the 4th digit information is what I was missing. Thank you for that information; that at least gives me something more to look into. I'm trying to solve that 0xE0005000 issues, as I'm trying to clean up the code and switch it to CoreHID. But as I have code that works using IOKit.hid and windows, and as the configuration for CoreHID looks pretty straight forward with minimal options or lower level access, I really don't have an Idea of a direction to go. I can get standard mouse events (movement and standard mouse buttons) just fine with the HIDDeviceClient.monitorNotifications() method. When asking for this usage, it doesn't get any events at all (no errors that i can see, just no events).

My line for notifications is: for try await notification in await deviceClient!.monitorNotifications(reportIDsToMonitor: [] , elementsToMonitor: [] ) { ... which sound like it should grab both reports and elements. I get NO reports from that usage. My windows test code looks to be getting an input report, making me think that i SHOULD be getting a report from CoreHID as well. And in my CoreHID test code, i also have a second attempt using HIDDeviceClient.RequestElementUpdate requesting that Element, and that also returns the kUSBHostReturnPipeStalled error.

And i can confirm, IOKit version also works with the HID reports. Attached code works without issue, output also attached. IOKit input report code. resulting output