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From: Clemens Ladisch <clemens@ladisch.de>
To: Eldad Zack <eldad@fogrefinery.com>
Cc: Takashi Iwai <tiwai@suse.de>,
	alsa-devel@alsa-project.org, Daniel Mack <zonque@gmail.com>
Subject: Re: [PATCH RFC 7/9] ALSA: usb-audio: conditional interface altsetting
Date: Mon, 19 Aug 2013 12:08:38 +0200	[thread overview]
Message-ID: <5211EEA6.6080809@ladisch.de> (raw)
In-Reply-To: <1376857363-1116-8-git-send-email-eldad@fogrefinery.com>

Eldad Zack wrote:
> On some devices, if the endpoint for the other direction is in use,
> setting one interface will shutdown the other (in use) endpoint.

There are (non-UAC) devices where both endpoints are in the same
interface.

> This patch needs revising. It adds a get_interface function, which
> should not be neccesary (possibly unreliable on some devices?).

struct usb_interface has cur_altsetting.


Regards,
Clemens

  reply	other threads:[~2013-08-19 10:08 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-08-18 20:22 [PATCH RFC 0/9] ALSA: usb-audio: fix playback/capture concurrent usage Eldad Zack
2013-08-18 20:22 ` [PATCH RFC 1/9] ALSA: usb-audio: remove unused parameter from sync_ep_set_params Eldad Zack
2013-08-18 20:22 ` [PATCH RFC 2/9] ALSA: usb-audio: remove deactivate_endpoints() Eldad Zack
2013-08-18 20:22 ` [PATCH RFC 3/9] ALSA: usb-audio: prevent NULL dereference on stop trigger Eldad Zack
2013-08-18 20:22 ` [PATCH RFC 4/9] ALSA: usb-audio: don't deactivate URBs on in-use EP Eldad Zack
2013-08-18 20:22 ` [PATCH RFC 5/9] ALSA: usb-audio: void return type of snd_usb_endpoint_deactivate() Eldad Zack
2013-08-18 20:22 ` [PATCH RFC 6/9] ALSA: usb-audio: clear SUBSTREAM_FLAG_SYNC_EP_STARTED on error Eldad Zack
2013-08-18 20:22 ` [PATCH RFC 7/9] ALSA: usb-audio: conditional interface altsetting Eldad Zack
2013-08-19 10:08   ` Clemens Ladisch [this message]
2013-08-19 20:13     ` Eldad Zack
2013-08-18 20:25 ` [PATCH RFC 8/9] ALSA: usb-audio: conditional concurrent usage of endpoint Eldad Zack
2013-08-18 20:25   ` [PATCH RFC 9/9] ALSA: usb-audio: correct ep use_count semantics (add set_param flag) Eldad Zack

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