[PATCH] i2c: acpi: Add VEN_04F3 to i2c_acpi_force_100khz_device_ids
From: Jacob Bazata
Date: Tue May 19 2026 - 01:24:44 EST
This model trackpad (04F3:32AA), found on various Dell XPS models
from 2023 including XPS 9500, 9510, 9520 and 9530 is well documented to,
at random, exhibit excessive smoothing with no obvious cause, similar
to other trackpad devices listed in the i2c_acpi_force_100khz_device
_ids struct.
Forcing the bus to 100KHz eliminates this behavior.
Signed-off-by: Jacob Bazata <jacobbazata@xxxxxxxxx>
---
drivers/i2c/i2c-core-acpi.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/i2c/i2c-core-acpi.c b/drivers/i2c/i2c-core-acpi.c
index 28c0e4884..512ebdfcc 100644
--- a/drivers/i2c/i2c-core-acpi.c
+++ b/drivers/i2c/i2c-core-acpi.c
@@ -373,6 +373,7 @@ static const struct acpi_device_id i2c_acpi_force_100khz_device_ids[] = {
{ "DLL0945", 0 },
{ "ELAN0678", 0 },
{ "ELAN06FA", 0 },
+ { "VEN_04F3", 0 },
{}
};
--
2.54.0