Experimental Windows KMDF driver for the dual Cirrus Logic CS35L45 speaker amplifiers in the Samsung Galaxy Tab S7 FE Wi-Fi (SM-T733/gts7fewifi).
- Controls both CS35L45 amplifiers over I2C/SPB.
- Uses ACPI
_UIDvalues0and1for the left and right channels. - Configures the ASP/I2S playback path and channel slots.
- Handles the shared reset GPIO, interrupt status and amplifier protection.
- Visual Studio with the Windows Driver Kit (WDK).
- An ARM64 Windows target.
- Matching ACPI entries for both amplifiers, including I2C,
_UID, reset and interrupt resources. - A compatible Qualcomm audio endpoint and AFE configuration.
Open cs35l45.sln and build the ARM64 configuration. The generated driver
must be test-signed or production-signed before installation.
This driver is under development and is currently intended for the gts7fewifi Windows on ARM port. Register settings, audio clocks and ACPI resources are device-specific and may damage speakers if used unchanged on other hardware.