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Fixed rumble on PS5 controllers connected to Windows over Bluetooth

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This commit is contained in:
Sam Lantinga 2020-11-19 07:12:53 -08:00
parent 8c3196da60
commit b0b76a61c7
1 changed files with 8 additions and 1 deletions
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9
src/hidapi/windows/hid.c
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@ -715,13 +715,20 @@ static int hid_write_timeout(hid_device *dev, const unsigned char *data, size_t
size_t stashed_length = length; size_t stashed_length = length;
unsigned char *buf; unsigned char *buf;
/* If the application is writing to the device, it knows how much data to write.
* This matches the behavior on other platforms. It's also important when writing
* to Sony game controllers over Bluetooth, where there's a CRC at the end which
* must not be tampered with.
*/
const BOOL write_exact_size = TRUE;
/* Make sure the right number of bytes are passed to WriteFile. Windows /* Make sure the right number of bytes are passed to WriteFile. Windows
expects the number of bytes which are in the _longest_ report (plus expects the number of bytes which are in the _longest_ report (plus
one for the report number) bytes even if the data is a report one for the report number) bytes even if the data is a report
which is shorter than that. Windows gives us this value in which is shorter than that. Windows gives us this value in
caps.OutputReportByteLength. If a user passes in fewer bytes than this, caps.OutputReportByteLength. If a user passes in fewer bytes than this,
create a temporary buffer which is the proper size. */ create a temporary buffer which is the proper size. */
if (length >= dev->output_report_length) { if (write_exact_size || length >= dev->output_report_length) {
/* The user passed the right number of bytes. Use the buffer as-is. */ /* The user passed the right number of bytes. Use the buffer as-is. */
buf = (unsigned char *) data; buf = (unsigned char *) data;
} else { } else {