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windows: Set the OS report buffer size to 64 reports

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Resolves issues with dropped input reports when receiving a large amount
of data.
This commit is contained in:
Scott Talbert
2014-01-28 23:35:06 -05:00
committed by Alan Ott
parent 6a4743ee59
commit 627f3aa478
1 changed files with 10 additions and 0 deletions
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10
windows/hid.c
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@@ -106,6 +106,7 @@ extern "C" {
typedef BOOLEAN (__stdcall *HidD_GetPreparsedData_)(HANDLE handle, PHIDP_PREPARSED_DATA *preparsed_data);
typedef BOOLEAN (__stdcall *HidD_FreePreparsedData_)(PHIDP_PREPARSED_DATA preparsed_data);
typedef NTSTATUS (__stdcall *HidP_GetCaps_)(PHIDP_PREPARSED_DATA preparsed_data, HIDP_CAPS *caps);
typedef BOOLEAN (__stdcall *HidD_SetNumInputBuffers_)(HANDLE handle, ULONG number_buffers);
static HidD_GetAttributes_ HidD_GetAttributes;
static HidD_GetSerialNumberString_ HidD_GetSerialNumberString;
@@ -117,6 +118,7 @@ extern "C" {
static HidD_GetPreparsedData_ HidD_GetPreparsedData;
static HidD_FreePreparsedData_ HidD_FreePreparsedData;
static HidP_GetCaps_ HidP_GetCaps;
static HidD_SetNumInputBuffers_ HidD_SetNumInputBuffers;
static HMODULE lib_handle = NULL;
static BOOLEAN initialized = FALSE;
@@ -206,6 +208,7 @@ static int lookup_functions()
RESOLVE(HidD_GetPreparsedData);
RESOLVE(HidD_FreePreparsedData);
RESOLVE(HidP_GetCaps);
RESOLVE(HidD_SetNumInputBuffers);
#undef RESOLVE
}
else
@@ -567,6 +570,13 @@ HID_API_EXPORT hid_device * HID_API_CALL hid_open_path(const char *path)
goto err;
}
/* Set the Input Report buffer size to 64 reports. */
res = HidD_SetNumInputBuffers(dev->device_handle, 64);
if (!res) {
register_error(dev, "HidD_SetNumInputBuffers");
goto err;
}
/* Get the Input Report length for the device. */
res = HidD_GetPreparsedData(dev->device_handle, &pp_data);
if (!res) {