The hardware ID ACPI\IBM0068 corresponds to the . This is the accelerometer chip used in Lenovo ThinkPad laptops to detect sudden movement or drops and park the hard drive heads to prevent data loss.
Name (_HID, "IBM0068") // Hardware ID Name (_UID, 0x02) // Unique ID (Battery 2) Method (_STA, 0, NotSerialized)
For anyone maintaining old ThinkPad hardware, ensuring that the driver for IBM0068 is correctly loaded is the difference between a frustrating “battery not recognized” and a perfectly functional hot-swappable second power source. acpi ibm0068
module_acpi_driver(ibm_aps_driver);
// Open the input device in read-only mode fd = open(EVENT_DEVICE, O_RDONLY); if (fd == -1) fprintf(stderr, "Error: Cannot open %s (%s)\n", EVENT_DEVICE, strerror(errno)); return EXIT_FAILURE; The hardware ID ACPI\IBM0068 corresponds to the
Method (_BIF, 0, NotSerialized) ... // Battery Information Method (_BST, 0, NotSerialized) ... // Battery Status // ... other power methods
: The identifier could relate to a specific device driver that interfaces with a piece of hardware, ensuring that the operating system can communicate with it according to ACPI standards. For instance, it might relate to a battery management unit, a thermal management device, or another type of system component critical for system operation. other power methods : The identifier could relate
#include <linux/module.h> #include <linux/acpi.h> #include <linux/input.h>