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hwmon: (asus_rog_ryujin) Add ROG Ryujin III support

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The ROG Ryujin III uses different report offsets and a different
cooler-duty channel from the Ryujin II. It also lacks the separate
external fan controller supplied with the older model.

Add model data and USB IDs for the Extreme and EVA Edition variants.
Skip controller commands and hide the unavailable controller hwmon
channels for these devices. Update the driver documentation, Kconfig
text, and module description accordingly.

Link: https://github.com/aleksamagicka/asus_rog_ryujin-hwmon/pull/9
Assisted-by: Codex:gpt-5.6-sol sparse
Signed-off-by: Arie Miller <renari@arimil.com>
Reviewed-by: Aleksa Savic <savicaleksa83@gmail.com>
Link: https://lore.kernel.org/r/20260812103532.395049-3-renari@arimil.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Arie Miller
2026-08-12 06:35:31 -04:00
committed by Guenter Roeck
parent b20ee9aee8
commit cd258aca0d
3 changed files with 31 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
Documentation/hwmon/asus_rog_ryujin.rst
View File

@@ -6,6 +6,8 @@ Kernel driver asus_rog_ryujin
Supported devices:
* ASUS ROG RYUJIN II 360
* ASUS ROG RYUJIN III EXTREME
* ASUS ROG RYUJIN III EVA EDITION
Author: Aleksa Savic
@@ -16,10 +18,10 @@ This driver enables hardware monitoring support for the listed ASUS ROG RYUJIN
all-in-one CPU liquid coolers. Available sensors are pump, internal and external
(controller) fan speed in RPM, their duties in PWM, as well as coolant temperature.
Attaching external fans to the controller is optional and allows them to be
controlled from the device. If not connected, the fan-related sensors will
report zeroes. The controller is a separate hardware unit that comes bundled
with the AIO and connects to it to allow fan control.
The RYUJIN II includes a separate external fan controller. Attaching fans to
the controller is optional and allows them to be controlled from the device.
If not connected, the controller-related sensors will report zeroes. The
RYUJIN III does not expose these controller channels.
The addressable LCD screen is not supported in this driver and should
be controlled through userspace tools.
@@ -33,15 +35,15 @@ supports hot swapping.
Sysfs entries
-------------
=========== =============================================
=========== ==========================================================
fan1_input Pump speed (in rpm)
fan2_input Internal fan speed (in rpm)
fan3_input External (controller) fan 1 speed (in rpm)
fan4_input External (controller) fan 2 speed (in rpm)
fan5_input External (controller) fan 3 speed (in rpm)
fan6_input External (controller) fan 4 speed (in rpm)
fan3_input External (controller) fan 1 speed (in rpm, RYUJIN II only)
fan4_input External (controller) fan 2 speed (in rpm, RYUJIN II only)
fan5_input External (controller) fan 3 speed (in rpm, RYUJIN II only)
fan6_input External (controller) fan 4 speed (in rpm, RYUJIN II only)
temp1_input Coolant temperature (in millidegrees Celsius)
pwm1 Pump duty
pwm2 Internal fan duty
pwm3 External (controller) fan duty
=========== =============================================
pwm3 External (controller) fan duty (RYUJIN II only)
=========== ==========================================================

4
drivers/hwmon/Kconfig
View File

@@ -293,11 +293,11 @@ config SENSORS_ASC7621
will be called asc7621.
config SENSORS_ASUS_ROG_RYUJIN
tristate "ASUS ROG RYUJIN II 360 hardware monitoring driver"
tristate "ASUS ROG RYUJIN hardware monitoring driver"
depends on HID
help
If you say yes here you get support for the fans and sensors of
the ASUS ROG RYUJIN II 360 AIO CPU liquid cooler.
supported ASUS ROG RYUJIN II and III AIO CPU liquid coolers.
This driver can also be built as a module. If so, the module
will be called asus_rog_ryujin.

18
drivers/hwmon/asus_rog_ryujin.c
View File

@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* hwmon driver for Asus ROG Ryujin II 360 AIO cooler.
* hwmon driver for Asus ROG Ryujin AIO coolers.
*
* Copyright 2024 Aleksa Savic <savicaleksa83@gmail.com>
*/
@@ -17,6 +17,8 @@
#define USB_VENDOR_ID_ASUS_ROG 0x0b05
#define USB_PRODUCT_ID_RYUJIN_AIO 0x1988 /* ASUS ROG RYUJIN II 360 */
#define USB_PRODUCT_ID_RYUJIN_III_EXTREME 0x1bcb
#define USB_PRODUCT_ID_RYUJIN_III_EVA 0x1ade
struct rog_ryujin_device_info {
u8 temp_offset;
@@ -34,6 +36,14 @@ static const struct rog_ryujin_device_info rog_ryujin_ii_360_info = {
.has_controller = true,
};
static const struct rog_ryujin_device_info rog_ryujin_iii_info = {
.temp_offset = 5,
.pump_speed_offset = 7,
.fan_speed_offset = 10,
.duty_channel = 1,
.has_controller = false,
};
#define STATUS_VALIDITY 1500 /* ms */
#define MAX_REPORT_LENGTH 65
@@ -576,6 +586,10 @@ static void rog_ryujin_remove(struct hid_device *hdev)
static const struct hid_device_id rog_ryujin_table[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ASUS_ROG, USB_PRODUCT_ID_RYUJIN_AIO),
.driver_data = (kernel_ulong_t)&rog_ryujin_ii_360_info },
{ HID_USB_DEVICE(USB_VENDOR_ID_ASUS_ROG, USB_PRODUCT_ID_RYUJIN_III_EXTREME),
.driver_data = (kernel_ulong_t)&rog_ryujin_iii_info },
{ HID_USB_DEVICE(USB_VENDOR_ID_ASUS_ROG, USB_PRODUCT_ID_RYUJIN_III_EVA),
.driver_data = (kernel_ulong_t)&rog_ryujin_iii_info },
{ }
};
@@ -605,4 +619,4 @@ module_exit(rog_ryujin_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Aleksa Savic <savicaleksa83@gmail.com>");
MODULE_DESCRIPTION("Hwmon driver for Asus ROG Ryujin II 360 AIO cooler");
MODULE_DESCRIPTION("Hwmon driver for Asus ROG Ryujin AIO coolers");