Symbol: TPACPI_BEEP_Q1
drivers/platform/x86/lenovo/thinkpad_acpi.c
5909
TPACPI_Q_IBM('I', 'M', TPACPI_BEEP_Q1), /* 570 */
drivers/platform/x86/lenovo/thinkpad_acpi.c
5910
TPACPI_Q_IBM('I', 'U', TPACPI_BEEP_Q1), /* 570E - unverified */
drivers/platform/x86/lenovo/thinkpad_acpi.c
5927
tp_features.beep_needs_two_args = !!(quirks & TPACPI_BEEP_Q1);