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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: Keith Milner <kamilner@superlative.org>
Tested-by: Dylan Robinson <dylan_robinson@motu.com>
Link: https://lore.kernel.org/r/20201123085347.19667-36-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2020-11-23 09:53:41 +01:00
parent 89fa3f686c
commit 8ec08b1a5c
1 changed files with 15 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
sound/usb/proc.c
View File

@ -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);
}