On 5/8/24 18:57, Wesley Cheng wrote: > Hi Pierre, > > On 5/7/2024 2:23 PM, Pierre-Louis Bossart wrote: >> >>> @@ -113,6 +120,12 @@ static int q6usb_alsa_connection_cb(struct >>> snd_soc_usb *usb, >>> if (connected) { >>> /* We only track the latest USB headset plugged in */ >>> data->active_usb_chip_idx = sdev->card_idx; >>> + >>> + set_bit(sdev->card_idx, &data->available_card_slot); >>> + data->status[sdev->card_idx].sdev = sdev; >> >> Not following the 'only track the latest USB headset plugged in', I >> don't see anything that discard the previously latest headset... >> >> If you plug headset1, then headset2, how is headset1 marked as not >> available for USB offload? >> > > It won't mark headset1 as not available for offload, because offload > could happen on either depending on what is selected (from the kcontrol > as well). Right, so the wording 'only track the latest USB headset plugged in' is incorrect or obsolete, isn't it?