Commit 8ec08b1a authored by Takashi Iwai's avatar Takashi Iwai
Browse files

ALSA: usb-audio: Show sync endpoint information in proc outputs 



Now the sync endpoints have been parsed at the beginning and won't be
changed dynamically, let's show them in the proc outputs for helping
debugging.

Tested-by: default avatarKeith Milner <kamilner@superlative.org>
Tested-by: default avatarDylan Robinson <dylan_robinson@motu.com>
Link: https://lore.kernel.org/r/20201123085347.19667-36-tiwai@suse.de


Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 89fa3f68

sound/usb/proc.c

+15 −1
Original line number Diff line number Diff line
@@ -108,7 +108,8 @@ static void proc_dump_substream_formats(struct snd_usb_substream *subs, struct s 
					    snd_pcm_format_name(fmt));

		snd_iprintf(buffer, "\n");

		snd_iprintf(buffer, "    Channels: %d\n", fp->channels);

		snd_iprintf(buffer, "    Endpoint: %d %s (%s)\n",

		snd_iprintf(buffer, "    Endpoint: 0x%02x (%d %s) (%s)\n",

			    fp->endpoint,

			    fp->endpoint & USB_ENDPOINT_NUMBER_MASK,

			    fp->endpoint & USB_DIR_IN ? "IN" : "OUT",

			    sync_types[(fp->ep_attr & USB_ENDPOINT_SYNCTYPE) >> 2]);
@@ -150,6 +151,19 @@ static void proc_dump_substream_formats(struct snd_usb_substream *subs, struct s 
			snd_iprintf(buffer, "\n");

		}



		if (fp->sync_ep) {

			snd_iprintf(buffer, "    Sync Endpoint: 0x%02x (%d %s)\n",

				    fp->sync_ep,

				    fp->sync_ep & USB_ENDPOINT_NUMBER_MASK,

				    fp->sync_ep & USB_DIR_IN ? "IN" : "OUT");

			snd_iprintf(buffer, "    Sync EP Interface: %d\n",

				    fp->sync_iface);

			snd_iprintf(buffer, "    Sync EP Altset: %d\n",

				    fp->sync_altsetting);

			snd_iprintf(buffer, "    Implicit Feedback Mode: %s\n",

				    fp->implicit_fb ? "Yes" : "No");

		}



		// snd_iprintf(buffer, "    Max Packet Size = %d\n", fp->maxpacksize);

		// snd_iprintf(buffer, "    EP Attribute = %#x\n", fp->attributes);

	}