From: Arkadiusz Hiler ahiler@codeweavers.com
Signed-off-by: Arkadiusz Hiler ahiler@codeweavers.com --- dlls/winealsa.drv/alsa.c | 74 ++++++++++++++++++---------------------- 1 file changed, 33 insertions(+), 41 deletions(-)
diff --git a/dlls/winealsa.drv/alsa.c b/dlls/winealsa.drv/alsa.c index b91606603a2..8439262428f 100644 --- a/dlls/winealsa.drv/alsa.c +++ b/dlls/winealsa.drv/alsa.c @@ -2318,21 +2318,21 @@ static NTSTATUS get_prop_value(void *args)
if(IsEqualPropertyKey(*prop, devicepath_key)) { + enum AudioDeviceConnectionType connection = AudioDeviceConnectionType_Unknown; + USHORT vendor_id = 0, product_id = 0; char uevent[MAX_PATH]; - FILE *fuevent; + FILE *fuevent = NULL; int card, device; + UINT serial_number; + char buf[128]; + int len;
- /* only implemented for identifiable devices, i.e. not "default" */ - if(!sscanf(name, "plughw:%u,%u", &card, &device)){ - params->result = E_NOTIMPL; - return STATUS_SUCCESS; + if(sscanf(name, "plughw:%u,%u", &card, &device)){ + sprintf(uevent, "/sys/class/sound/card%u/device/uevent", card); + fuevent = fopen(uevent, "r"); } - sprintf(uevent, "/sys/class/sound/card%u/device/uevent", card); - fuevent = fopen(uevent, "r");
if(fuevent){ - enum AudioDeviceConnectionType connection = AudioDeviceConnectionType_Unknown; - USHORT vendor_id = 0, product_id = 0; char line[256];
while (fgets(line, sizeof(line), fuevent)) { @@ -2365,41 +2365,33 @@ static NTSTATUS get_prop_value(void *args) }
fclose(fuevent); + }
- if(connection == AudioDeviceConnectionType_USB || connection == AudioDeviceConnectionType_PCI){ - UINT serial_number; - char buf[128]; - int len; - - /* As hardly any audio devices have serial numbers, Windows instead - appears to use a persistent random number. We emulate this here - by instead using the last 8 hex digits of the GUID. */ - serial_number = (guid->Data4[4] << 24) | (guid->Data4[5] << 16) | (guid->Data4[6] << 8) | guid->Data4[7]; - - if(connection == AudioDeviceConnectionType_USB) - sprintf(buf, "{1}.USB\VID_%04X&PID_%04X\%u&%08X", - vendor_id, product_id, device, serial_number); - else /* AudioDeviceConnectionType_PCI */ - sprintf(buf, "{1}.HDAUDIO\FUNC_01&VEN_%04X&DEV_%04X\%u&%08X", - vendor_id, product_id, device, serial_number); - - len = strlen(buf) + 1; - if(*params->buffer_size < len * sizeof(WCHAR)){ - params->result = E_NOT_SUFFICIENT_BUFFER; - *params->buffer_size = len * sizeof(WCHAR); - return STATUS_SUCCESS; - } - out->vt = VT_LPWSTR; - out->pwszVal = params->buffer; - ntdll_umbstowcs(buf, len, out->pwszVal, len); - params->result = S_OK; - return STATUS_SUCCESS; - } - }else{ - WARN("Could not open %s for reading\n", uevent); - params->result = E_NOTIMPL; + /* As hardly any audio devices have serial numbers, Windows instead + appears to use a persistent random number. We emulate this here + by instead using the last 8 hex digits of the GUID. */ + serial_number = (guid->Data4[4] << 24) | (guid->Data4[5] << 16) | (guid->Data4[6] << 8) | guid->Data4[7]; + + if(connection == AudioDeviceConnectionType_USB) + sprintf(buf, "{1}.USB\VID_%04X&PID_%04X\%u&%08X", + vendor_id, product_id, device, serial_number); + else if (connection == AudioDeviceConnectionType_PCI) + sprintf(buf, "{1}.HDAUDIO\FUNC_01&VEN_%04X&DEV_%04X\%u&%08X", + vendor_id, product_id, device, serial_number); + else + sprintf(buf, "{1}.ROOT\MEDIA\%04u", serial_number & 0x1FF); + + len = strlen(buf) + 1; + if(*params->buffer_size < len * sizeof(WCHAR)){ + params->result = E_NOT_SUFFICIENT_BUFFER; + *params->buffer_size = len * sizeof(WCHAR); return STATUS_SUCCESS; } + out->vt = VT_LPWSTR; + out->pwszVal = params->buffer; + ntdll_umbstowcs(buf, len, out->pwszVal, len); + params->result = S_OK; + return STATUS_SUCCESS; } else if (flow != eCapture && IsEqualPropertyKey(*prop, PKEY_AudioEndpoint_PhysicalSpeakers)) { unsigned int num_speakers, card, device; char hwname[255];