asus-laptop: Show HRWS in infos and fix output format

Show HRWS in /sys/platform/devices/asus-laptop/infos.
HRWS is a bitfield used to get information about Hardware
available in the laptop.
Also change sprintf format from 0x%04x to %#x.

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Len Brown <len.brown@intel.com>

diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c
index db657bb..2344950 100644 (file)
--- a/drivers/platform/x86/asus-laptop.c
+++ b/drivers/platform/x86/asus-laptop.c
@@ -516,7 +516,17 @@ static ssize_t show_infos(struct device *dev,
         */
        rv = acpi_evaluate_integer(hotk->handle, "SFUN", NULL, &temp);
        if (!ACPI_FAILURE(rv))
-               len += sprintf(page + len, "SFUN value         : 0x%04x\n",
+               len += sprintf(page + len, "SFUN value         : %#x\n",
+                              (uint) temp);
+       /*
+        * The HWRS method return informations about the hardware.
+        * 0x80 bit is for WLAN, 0x100 for Bluetooth.
+        * The significance of others is yet to be found.
+        * If we don't find the method, we assume the device are present.
+        */
+       rv = acpi_evaluate_integer(hotk->handle, "HRWS", NULL, &temp);
+       if (!ACPI_FAILURE(rv))
+               len += sprintf(page + len, "HRWS value         : %#x\n",
                               (uint) temp);
        /*
         * Another value for userspace: the ASYM method returns 0x02 for
@@ -527,7 +537,7 @@ static ssize_t show_infos(struct device *dev,
         */
        rv = acpi_evaluate_integer(hotk->handle, "ASYM", NULL, &temp);
        if (!ACPI_FAILURE(rv))
-               len += sprintf(page + len, "ASYM value         : 0x%04x\n",
+               len += sprintf(page + len, "ASYM value         : %#x\n",
                               (uint) temp);
        if (asus_info) {
                snprintf(buf, 16, "%d", asus_info->length);