@@ -92,7 +92,7 @@ struct snd_usb_endpoint {
unsigned int curframesize; /* current packet size in frames (for capture) */
unsigned int syncmaxsize; /* sync endpoint packet size */
unsigned int fill_max:1; /* fill max packet size always */
- unsigned int udh01_fb_quirk:1; /* corrupted feedback data */
+ unsigned int tenor_fb_quirk:1; /* corrupted feedback data */
unsigned int datainterval; /* log_2 of data packet interval */
unsigned int syncinterval; /* P for adaptive mode, 0 otherwise */
unsigned char silence_value;
@@ -1167,9 +1167,10 @@ void snd_usb_handle_sync_urb(struct snd_usb_endpoint *ep,
if (f == 0)
return;
- if (unlikely(sender->udh01_fb_quirk)) {
+ if (unlikely(sender->tenor_fb_quirk)) {
/*
- * The TEAC UD-H01 firmware sometimes changes the feedback value
+ * Devices based on Tenor 8802 chipsets (TEAC UD-H01
+ * and others) sometimes change the feedback value
* by +/- 0x1.0000.
*/
if (f < ep->freqn - 0x8000)
@@ -1218,9 +1218,10 @@ void snd_usb_endpoint_start_quirk(struct snd_usb_endpoint *ep)
ep->skip_packets = 16;
/* Work around devices that report unreasonable feedback data */
- if (ep->chip->usb_id == USB_ID(0x0644, 0x8038) /* TEAC UD-H01 */ &&
+ if ((ep->chip->usb_id == USB_ID(0x0644, 0x8038) || /* TEAC UD-H01 */
+ ep->chip->usb_id == USB_ID(0x1852, 0x5034)) && /* T+A Dac8 */
ep->syncmaxsize == 4)
- ep->udh01_fb_quirk = 1;
+ ep->tenor_fb_quirk = 1;
}
void snd_usb_set_interface_quirk(struct usb_device *dev)
The quirk seems to be necessary not only for TEAC UD-H01 devices, but to more that are based on the Tenor 8802TL chipset. Devices built by T+A are affected too, and they apparently all use the same USB PID:PID. Extend the quirky handling for that device as well, and rename the quirks flag. Reported-and-tested-by: Thomas Gresens <T.Gresens@intershop.de> Signed-off-by: Daniel Mack <daniel@zonque.org> --- sound/usb/card.h | 2 +- sound/usb/endpoint.c | 5 +++-- sound/usb/quirks.c | 5 +++-- 3 files changed, 7 insertions(+), 5 deletions(-)