Hm, I'm not the biggest fan. Is this an official DS4 or a clone device? It sounds like it is some type of clone (some look real). On Sun, Oct 2, 2022 at 3:03 PM Henry Castro <hcvcastro@xxxxxxxxx> wrote: > > For some reason my DualShock 4 get the calibration > data values equal: > > gyro_pitch_plus == gyro_pitch_minus > > Probably due to some defect in the DS4 hardware, and cause > a CPU division exception to crash the linux kernel. > > At least with the patch, I can continue play Retroarch > without using the Gyroscope :) > > Signed-off-by: Henry Castro <hcvcastro@xxxxxxxxx> > --- > drivers/hid/hid-sony.c | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c > index 87b538656f64..656caa07b25f 100644 > --- a/drivers/hid/hid-sony.c > +++ b/drivers/hid/hid-sony.c > @@ -1823,6 +1823,15 @@ static int dualshock4_get_calibration_data(struct sony_sc *sc) > acc_z_plus = get_unaligned_le16(&buf[31]); > acc_z_minus = get_unaligned_le16(&buf[33]); > > + if (gyro_pitch_plus == gyro_pitch_minus) > + gyro_pitch_minus *= -1; > + > + if (gyro_yaw_plus == gyro_yaw_minus) > + gyro_yaw_minus *= -1; > + > + if (gyro_roll_plus == gyro_roll_minus) > + gyro_roll_minus *= -1; > + > /* Set gyroscope calibration and normalization parameters. > * Data values will be normalized to 1/DS4_GYRO_RES_PER_DEG_S degree/s. > */ > -- > 2.20.1 >
