diff options
Diffstat (limited to 'sound/firewire/fireface/ff-stream.c')
| -rw-r--r-- | sound/firewire/fireface/ff-stream.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/sound/firewire/fireface/ff-stream.c b/sound/firewire/fireface/ff-stream.c index a13754f914e8..63b79c4a5405 100644 --- a/sound/firewire/fireface/ff-stream.c +++ b/sound/firewire/fireface/ff-stream.c @@ -184,6 +184,7 @@ int snd_ff_stream_start_duplex(struct snd_ff *ff, unsigned int rate) */ if (!amdtp_stream_running(&ff->rx_stream)) { int spd = fw_parent_device(ff->unit)->max_speed; + unsigned int ir_delay_cycle; err = ff->spec->protocol->begin_session(ff, rate); if (err < 0) @@ -199,7 +200,14 @@ int snd_ff_stream_start_duplex(struct snd_ff *ff, unsigned int rate) if (err < 0) goto error; - err = amdtp_domain_start(&ff->domain); + // The device postpones start of transmission mostly for several + // cycles after receiving packets firstly. + if (ff->spec->protocol == &snd_ff_protocol_ff800) + ir_delay_cycle = 800; // = 100 msec + else + ir_delay_cycle = 16; // = 2 msec + + err = amdtp_domain_start(&ff->domain, ir_delay_cycle); if (err < 0) goto error; |