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authorLen Brown <len.brown@intel.com>2007-02-03 09:14:35 +0300
committerLen Brown <len.brown@intel.com>2007-02-03 09:14:35 +0300
commit975a8e3ed2b9eab9f062a1e0ba7fe180e15204e1 (patch)
tree59b654df0b066b6d6b8ea16f5ae581b8fb45c1d5 /drivers/acpi/system.c
parent1fcb71b84b05ff3bfd5b5b2eca9a9b3d13a76e3a (diff)
parentbfd80223d73f80e1d1c69dace9151756b3ef3b49 (diff)
downloadlinux-975a8e3ed2b9eab9f062a1e0ba7fe180e15204e1.tar.xz
Pull sysfs into test branch
Conflicts: Documentation/feature-removal-schedule.txt include/acpi/acpi_drivers.h Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/system.c')
-rw-r--r--drivers/acpi/system.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/acpi/system.c b/drivers/acpi/system.c
index 2d425d845821..7147b0bdab0a 100644
--- a/drivers/acpi/system.c
+++ b/drivers/acpi/system.c
@@ -32,6 +32,11 @@
#define _COMPONENT ACPI_SYSTEM_COMPONENT
ACPI_MODULE_NAME("acpi_system")
+#ifdef MODULE_PARAM_PREFIX
+#undef MODULE_PARAM_PREFIX
+#endif
+#define MODULE_PARAM_PREFIX "acpi."
+
#define ACPI_SYSTEM_CLASS "system"
#define ACPI_SYSTEM_DRIVER_NAME "ACPI System Driver"
#define ACPI_SYSTEM_DEVICE_NAME "System"
@@ -40,9 +45,23 @@ ACPI_MODULE_NAME("acpi_system")
#define ACPI_SYSTEM_FILE_DSDT "dsdt"
#define ACPI_SYSTEM_FILE_FADT "fadt"
+/*
+ * Make ACPICA version work as module param
+ */
+static int param_get_acpica_version(char *buffer, struct kernel_param *kp) {
+ int result;
+
+ result = sprintf(buffer, "%x", ACPI_CA_VERSION);
+
+ return result;
+}
+
+module_param_call(acpica_version, NULL, param_get_acpica_version, NULL, 0444);
+
/* --------------------------------------------------------------------------
FS Interface (/proc)
-------------------------------------------------------------------------- */
+#ifdef CONFIG_ACPI_PROCFS
static int acpi_system_read_info(struct seq_file *seq, void *offset)
{
@@ -62,6 +81,7 @@ static const struct file_operations acpi_system_info_ops = {
.llseek = seq_lseek,
.release = single_release,
};
+#endif
static ssize_t acpi_system_read_dsdt(struct file *, char __user *, size_t,
loff_t *);
@@ -125,6 +145,7 @@ static int __init acpi_system_init(void)
if (acpi_disabled)
return 0;
+#ifdef CONFIG_ACPI_PROCFS
/* 'info' [R] */
name = ACPI_SYSTEM_FILE_INFO;
entry = create_proc_entry(name, S_IRUGO, acpi_root_dir);
@@ -133,6 +154,7 @@ static int __init acpi_system_init(void)
else {
entry->proc_fops = &acpi_system_info_ops;
}
+#endif
/* 'dsdt' [R] */
name = ACPI_SYSTEM_FILE_DSDT;
@@ -156,7 +178,9 @@ static int __init acpi_system_init(void)
Error:
remove_proc_entry(ACPI_SYSTEM_FILE_FADT, acpi_root_dir);
remove_proc_entry(ACPI_SYSTEM_FILE_DSDT, acpi_root_dir);
+#ifdef CONFIG_ACPI_PROCFS
remove_proc_entry(ACPI_SYSTEM_FILE_INFO, acpi_root_dir);
+#endif
error = -EFAULT;
goto Done;