firewire: core: add device quirk detection

[PATCH 0/2] firewire: core: add device quirk detection

Posted by Takashi Sakamoto 2 months, 1 week ago

Hi,

In the history of this subsystem, we have experienced some device-specific
quirks. For example:

* afa1282a35d3 ("firewire: core: check for 1394a compliant IRM, fix inaccessibility of Sony camcorder").
* a509e43ff338 ("firewire: core: fix unstable I/O with Canon camcorder").
* 3a93d082bacf ("ALSA: firewire-motu: add support for MOTU Audio Express")

However, there is no common mechanism to handle such quirks. This patchset
adds a consistent approach for detecting and managing device-specific
quirks within the subsystem.

Takashi Sakamoto (2):
  firewire: core: detect device quirk when reading configuration ROM
  firewire: core: handle device quirk of MOTu Audio Express

 drivers/firewire/core-card.c   | 21 +++------
 drivers/firewire/core-device.c | 78 +++++++++++++++++++++++++++++++++-
 drivers/firewire/ohci.c        | 29 +++++++++++++
 include/linux/firewire.h       | 14 ++++++
 4 files changed, 126 insertions(+), 16 deletions(-)


base-commit: 3a8660878839faadb4f1a6dd72c3179c1df56787
-- 
2.51.0

Re: [PATCH 0/2] firewire: core: add device quirk detection

Posted by Takashi Sakamoto 2 months ago

On Mon, Oct 13, 2025 at 11:03:09PM +0900, Takashi Sakamoto wrote:
> Hi,
> 
> In the history of this subsystem, we have experienced some device-specific
> quirks. For example:
> 
> * afa1282a35d3 ("firewire: core: check for 1394a compliant IRM, fix inaccessibility of Sony camcorder").
> * a509e43ff338 ("firewire: core: fix unstable I/O with Canon camcorder").
> * 3a93d082bacf ("ALSA: firewire-motu: add support for MOTU Audio Express")
> 
> However, there is no common mechanism to handle such quirks. This patchset
> adds a consistent approach for detecting and managing device-specific
> quirks within the subsystem.
> 
> Takashi Sakamoto (2):
>   firewire: core: detect device quirk when reading configuration ROM
>   firewire: core: handle device quirk of MOTu Audio Express
> 
>  drivers/firewire/core-card.c   | 21 +++------
>  drivers/firewire/core-device.c | 78 +++++++++++++++++++++++++++++++++-
>  drivers/firewire/ohci.c        | 29 +++++++++++++
>  include/linux/firewire.h       | 14 ++++++
>  4 files changed, 126 insertions(+), 16 deletions(-)

Applied to for-next branch.


Regards

Takashi Sakamoto