On Fri, Nov 08, 2024 at 02:48:44PM +0300, Konstantin Aladyshev wrote: > Thanks for the help! > $ cat /sys/bus/acpi/devices/device\:25/path These cat:s you made are mostly useless in this case. And you should look for the real device folders in sysfs and firmware_node links there. ... > However I was using the at24 device only as an example. > My real target device is jc42 > (https://github.com/torvalds/linux/blob/906bd684e4b1e517dd424a354744c5b0aebef8af/drivers/hwmon/jc42.c#L600). > Does it mean that jc42 driver doesn't support ACPI binding? Kinda. I just sent a patch, please test and provide your Tested-by if it helps. ... > Just in case here is my SSDT: > ``` > DefinitionBlock ("jc42.aml", "SSDT", 5, "", "JC42", 1) > { > External (_SB_.PCI0.SMBS, DeviceObj) > > Scope (\_SB_.PCI0.SMBS) > { > Device (SMB0) { > Name (_ADR, 0) > } > Device (SMB1) { > Name (_ADR, 1) > } > Device (SMB2) { > Name (_ADR, 2) > } > } > > Scope (\_SB.PCI0.SMBS) While this works, we expect Scope to be under the respective host controller, i.e. Scope (\_SB.PCI0.SMBS.SMB0) in your case. > { > Device (JC42) { > Name (_HID, "PRP0001") > Name (_DDN, "JC42 Temperature sensor") > Name (_CRS, ResourceTemplate () { > I2cSerialBusV2 ( > 0x001c, // I2C Slave Address > ControllerInitiated, > 400000, // Bus speed > AddressingMode7Bit, > "\\_SB.PCI0.SMBS.SMB0", // Link to ACPI I2C host > controller > 0 > ) > }) > > Name (_DSD, Package () { > ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"), > Package () { > Package () { "compatible", Package() { > "jedec,jc-42.4-temp" } }, > } > }) > } > } > } -- With Best Regards, Andy Shevchenko
