diff options
Diffstat (limited to 'sound/firewire/bebob')
| -rw-r--r-- | sound/firewire/bebob/bebob_stream.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/sound/firewire/bebob/bebob_stream.c b/sound/firewire/bebob/bebob_stream.c index 47773ca97e46..470c2b70cbfa 100644 --- a/sound/firewire/bebob/bebob_stream.c +++ b/sound/firewire/bebob/bebob_stream.c @@ -649,10 +649,15 @@ int snd_bebob_stream_start_duplex(struct snd_bebob *bebob) else tx_init_skip_cycles = 16000; - // MEMO: In the early stage of packet streaming, the device transfers NODATA packets. - // After several hundred cycles, it begins to multiplex event into the packet with - // syt information. - err = amdtp_domain_start(&bebob->domain, tx_init_skip_cycles, false, false); + // MEMO: Some devices start packet transmission long enough after establishment of + // CMP connection. In the early stage of packet streaming, any device transfers + // NODATA packets. After several hundred cycles, it begins to multiplex event into + // the packet with adequate value of syt field in CIP header. Some devices are + // strictly to generate any discontinuity in the sequence of tx packet when they + // receives inadequate sequence of value in syt field of CIP header. In the case, + // the request to break CMP connection is often corrupted, then any transaction + // results in unrecoverable error, sometimes generate bus-reset. + err = amdtp_domain_start(&bebob->domain, tx_init_skip_cycles, true, false); if (err < 0) goto error; |