Bug 8471

Summary:	Ricoh FireWire controller doesn't work with FreeBob audio driver
Product:	Drivers	Reporter:	Stefan Richter (stefanr)
Component:	IEEE1394	Assignee:	drivers_ieee1394
Status:	REJECTED INSUFFICIENT_DATA
Severity:	normal
Priority:	P2
Hardware:	i386
OS:	Linux
Kernel Version:	all	Subsystem:
Regression:	---	Bisected commit-id:
Bug Depends on:
Bug Blocks:	10046

Description Stefan Richter 2007-05-12 11:55:40 UTC

Audio capture through the JACK / FreeBoB drivers fails with the following message:

ohci1394: fw-host0: Unrecoverable error!
ohci1394: fw-host0: Iso Xmit 0 Context died: ctrl[20649806] cmdptr[f000e2c3]

Happens with the following FierWire controller which is found as onboard
controller of a number of relatively current notebooks:

FireWire (IEEE 1394): Ricoh Co Ltd R5C552 IEEE 1394 Controller (rev 08)

http://marc.info/?l=linux1394-user&m=116290542300958
http://marc.info/?l=linux1394-user&m=117891813528258

Comment 1 Alan 2008-09-23 13:08:46 UTC

Closing out stale bugs

Comment 2 Stefan Richter 2008-10-26 11:26:26 UTC

Downstream bug:
https://bugs.launchpad.net/ubuntu/+source/linux-meta/+bug/232490

Comment 3 Stefan Richter 2008-10-26 11:35:45 UTC

Other posts about this problem:
http://marc.info/?l=linux1394-devel&m=114971484119328
http://marc.info/?l=linux1394-devel&m=117108997515305

From the latter thread:  The "event" part of the ctrl bitfield means "evt_descriptor_read = An unrecoverable error occurred while the Host Controller was reading a descriptor block."  Not very helpful though.