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A maintainer of Linux FireWire subsystem and ALSA firewire stack.
http://ieee1394.docs.kernel.org/
https://github.com/takaswie/linux-firewire-dkms/
takaswie

Takashi Sakamoto (坂本 貴史)

As I said.
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takaswie
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lina@vt.social

Asahi Lina (朝日リナ) // nullptr::live

Figuring out how to represent this device's mixer controls in ALSA is pain peko...

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takaswie

Takashi Sakamoto (坂本 貴史)

Reply to @monsieuricon
@monsieuricon I sent it 14 June. I would appreciate any reaction to it.
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takaswie

Takashi Sakamoto (坂本 貴史)

Ah, indeed. PCI device driver has no need to know virtual address mapped to their DMA bus address, unless they have any interface to applications.
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takaswie

Takashi Sakamoto (坂本 貴史)

@monsieuricon It's time to redirect http://ieee1394.wiki.kernel.org/ to http://ieee1394.docs.kernel.org/, Would I request it to you?

https://lore.kernel.org/lkml/20240613090343.416198-1-o-takashi@sakamocchi.jp/
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takaswie

Takashi Sakamoto (坂本 貴史)

In a design of the core function, the device underlying the card is not necessarily 1394 OHCI, thus the identifier should not be selected from PCIe-related data. Hm.
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takaswie
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hrw@society.oftrolls.com

Marcin Juszkiewicz

Several websites write that snapdragon X devices are the first laptop with Arm cpu.

Acorn A4 was the first laptop with ARM cpu.

In June 1992. 32 years ago.

https://www.computinghistory.org.uk/det/22807/Acorn-A4-Laptop/

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takaswie

Takashi Sakamoto (坂本 貴史)

Alternatively, `card_index` or device major/minor numbers? An address in PCI bus?
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takaswie

Takashi Sakamoto (坂本 貴史)

Edited 6 months ago
Mmm. `__assign_str()` for` dev_name()` with `struct device *`. I don't like to put strings into data structure for tracepoints events...
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takaswie

Takashi Sakamoto (坂本 貴史)

wha...t...?
https://lore.kernel.org/lkml/000000000000100905061a18c63a@google.com/
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takaswie
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gregkh

Greg K-H

Reply to @joshbressers@infosec.exchange
@joshbressers @Di4na @kurtseifried The Linux kernel community has been using a LLM for many many years now to find security/bug-related fixes in order to flag them to be backported to stable kernels. Lots of papers were published on this, and presentations were made so you can point to lots of "prior art" here for anyone who wants to do this on their own.
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takaswie

Takashi Sakamoto (坂本 貴史)

I absolutely agree with this:
https://lore.kernel.org/lkml/ZkHKKvyLJSy8FYoU@gmail.com/
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takaswie

Takashi Sakamoto (坂本 貴史)

Edited 7 months ago
OHCI_TCODE_PHY_PACKET = TCODE_LINK_INTERNAL = OHCI1394_phy_tcode = 0xe in 1394 OHCI.
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takaswie

Takashi Sakamoto (坂本 貴史)

Reply to @gregkh
@gregkh Yup. I'm waiting for the release of -rc1 kernel to start the action.

I've been using the issued 1394 OHCI hardware in recent years to develop both Linux FireWire subsytem and IEC 61883-1/6 packet streaming engine in guest system to which the 1394 OHCI hardware is passedthough from host system. I have never experienced the reported issue.

In my opinion, the issue is in the PCIe host bridge or something like it in the reported Apple hardware which provides the secondary bus to the 1394 OHCI hardware. As long as I know, the reported Apple hardware has no IEEE 1394 interface, thus the patch author probably used some kind of specific hardware to connect the 1394 OHCI hardware. I guess that it should be [Apple thunderbolt display](https://lore.kernel.org/linux-pci/1372860295-8306-1-git-send-email-mika.westerberg@linux.intel.com/) or Apple thunderbolt 2 to FireWire adapter.

Anyway, it is better to ask the author what combination of hardware is used.
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takaswie

Takashi Sakamoto (坂本 貴史)

Edited 8 months ago

Hm. A commit 29a43dc130ce (“PCI: Mark LSI FW643 to avoid bus reset”) should be reverted, since it would include some misunderstandings.

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takaswie

Takashi Sakamoto (坂本 貴史)

Debian Bug report logs - #1061936 ITP: libhitaki -- Library to operate ALSA HwDep device for ALSA firewire stack
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1061936

Was closed!
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takaswie

Takashi Sakamoto (坂本 貴史)

Edited 11 months ago
[PATCH] firewire: ohci: suppress unexpected system reboot in AMD Ryzen machines and ASM108x/VT630x PCIe cards
https://lore.kernel.org/lkml/20231229035735.11127-1-o-takashi@sakamocchi.jp/
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takaswie

Takashi Sakamoto (坂本 貴史)

I sent:

[GIT PULL] firewire fixes for v6.7-rc4
https://lore.kernel.org/lkml/20231202080648.GA34377@workstation.local/T/#u
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takaswie

Takashi Sakamoto (坂本 貴史)

The debian package for linux-firewire-utils 0.5.0-1 is now accepted to unstable.

https://tracker.debian.org/pkg/linux-firewire-utils
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takaswie

Takashi Sakamoto (坂本 貴史)

Libhinoko version 0.9.1 release

The main objective of this micro release is to incorporate support for
meson build subproject functionality. For applications to utilize meson
build wrap dependency system, a new dependency object of 'hinoko' is newly
available. For detailed information, please refer to README.tst.
Inconveniently, hinoko project is not registered to public WrapDB yet,
thus users need to write wrap file manually for the time being.

For the release, compressed package archive is available with both
signatures by kernel.org system admin and author under this URL:

https://kernel.org/pub/linux/libs/ieee1394/libhinoko-0.9.1.tar.xz

The package archive is generated by 0.9.1 signed tag in upstream
repository:

https://git.kernel.org/pub/scm/libs/ieee1394/libhinoko.git/tag/?h=v0.9.1
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