From: Kristian Angelov kristiana2000@abv.bg
[ Upstream commit 6a758a3e831ce1a84c9c209ac6dc755f4c8ce77a ]
This patch fixes setting the cmd values to 0xb3 and 0xb4. This is necessary on some TUF laptops in order to set the RGB mode.
Closes: https://lore.kernel.org/platform-driver-x86/443078148.491022.1677576298133@n... Signed-off-by: Kristian Angelov kristiana2000@abv.bg Reviewed-by: Luke D. Jones luke@ljones.dev Link: https://lore.kernel.org/r/ZLlS7o6UdTUBkyqa@wyvern.localdomain Reviewed-by: Hans de Goede hdegoede@redhat.com Signed-off-by: Hans de Goede hdegoede@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/platform/x86/asus-wmi.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c index 02bf286924183..36effe04c6f33 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -738,13 +738,23 @@ static ssize_t kbd_rgb_mode_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - u32 cmd, mode, r, g, b, speed; + u32 cmd, mode, r, g, b, speed; int err;
if (sscanf(buf, "%d %d %d %d %d %d", &cmd, &mode, &r, &g, &b, &speed) != 6) return -EINVAL;
- cmd = !!cmd; + /* B3 is set and B4 is save to BIOS */ + switch (cmd) { + case 0: + cmd = 0xb3; + break; + case 1: + cmd = 0xb4; + break; + default: + return -EINVAL; + }
/* These are the known usable modes across all TUF/ROG */ if (mode >= 12 || mode == 9)