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Mouse Systems mice: The last two bytes of the report are now correctly the mouse movement delta between when we've initially prepared the report for sending and when we've reached the 3rd byte.

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OBattler
2026-01-31 06:17:25 +01:00
parent 561a7171c3
commit 8e1acfa3b1
1 changed files with 17 additions and 1 deletions
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18
src/device/mouse_serial.c
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@@ -143,8 +143,24 @@ sermouse_transmit_byte(mouse_t *dev, int do_next)
if (dev->buf_pos == 0)
dev->acc_time = 0.0;
if (dev->serial)
if (dev->serial) {
if ((dev->state == STATE_TRANSMIT_REPORT) && (dev->format == FORMAT_PB_5BYTE) &&
(dev->buf_pos == 3)) {
/*
The last two bytes are the delta between now and when we originally
prepared the report for sending.
*/
int delta_x = 0;
int delta_y = 0;
mouse_subtract_coords(&delta_x, &delta_y, NULL, NULL, -128, 127, 1, 0);
dev->buf[3] = delta_x; /* same as byte 1 */
dev->buf[4] = delta_y; /* same as byte 2 */
}
serial_write_fifo(dev->serial, dev->buf[dev->buf_pos]);
}
if (do_next) {
/* If we have a buffer length of 0, pretend the state is STATE_SKIP_PACKET. */