https://bugzilla.kernel.org/show_bug.cgi?id=40222
--- Comment #6 from Lan Tianyu <tianyu....@intel.com> 2011-08-22 01:38:42 ---
In the DSDT, there is not "GHCI" method under device "VALZ". So the
toshiba_acpi driver can't be loaded.
The driver first check whether there is a valid path for hci method in the
DSDT.
static int __init toshiba_acpi_init(void)
{
...
/* simple device detection: look for HCI method */
if (is_valid_acpi_path(TOSH_INTERFACE_1 GHCI_METHOD)) {
method_hci = TOSH_INTERFACE_1 GHCI_METHOD;
if (toshiba_acpi_setup_keyboard(TOSH_INTERFACE_1))
pr_info("Unable to activate hotkeys\n");
} else if (is_valid_acpi_path(TOSH_INTERFACE_2 GHCI_METHOD)) {
method_hci = TOSH_INTERFACE_2 GHCI_METHOD;
if (toshiba_acpi_setup_keyboard(TOSH_INTERFACE_2))
pr_info("Unable to activate hotkeys\n");
} else
return -ENODEV;
...
}
if not, return back.
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