f5710e9761
commit 0edb555a65d1ef047a9805051c36922b52a38a9d
Author: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
AuthorDate: Mon Oct 9 12:37:26 2023 +0200
Commit: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
CommitDate: Mon May 27 10:34:35 2024 +0200
platform: Make platform_driver::remove() return void
struct platform_driver::remove returning an integer made driver authors
expect that returning an error code was proper error handling. However
the driver core ignores the error and continues to remove the device
because there is nothing the core could do anyhow and reentering the
remove callback again is only calling for trouble.
To prevent such wrong assumptions, change the return type of the remove
callback to void. This was prepared by introducing an alternative remove
callback returning void and converting all drivers to that. So .remove()
can be changed without further changes in drivers.
This corresponds to step b) of the plan outlined in commit
5c5a7680e67b ("platform: Provide a remove callback that returns no value").
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
|
||
|---|---|---|
| ac108_plugin | ||
| patches | ||
| pulseaudio | ||
| tools | ||
| ac10x.h | ||
| ac101.c | ||
| ac101_regs.h | ||
| ac108.c | ||
| ac108.h | ||
| ac108_6mic.state | ||
| ac108_asound.state | ||
| asound_2mic.conf | ||
| asound_4mic.conf | ||
| asound_6mic.conf | ||
| builddtbo.sh | ||
| default.pa | ||
| dkms.conf | ||
| install.sh | ||
| LICENSE | ||
| Makefile | ||
| README.md | ||
| seeed-2mic-voicecard-overlay.dts | ||
| seeed-2mic-voicecard.dtbo | ||
| seeed-4mic-voicecard-overlay.dts | ||
| seeed-4mic-voicecard.dtbo | ||
| seeed-8mic-voicecard-overlay.dts | ||
| seeed-8mic-voicecard.dtbo | ||
| seeed-voicecard | ||
| seeed-voicecard.c | ||
| seeed-voicecard.service | ||
| sound-compatible-4.18.h | ||
| ubuntu-prerequisite.sh | ||
| uninstall.sh | ||
| wm8960.c | ||
| wm8960.h | ||
| wm8960_asound.state | ||
seeed-voicecard
The drivers for ReSpeaker Mic Hat, ReSpeaker 4 Mic Array, 6-Mics Circular Array Kit, and 4-Mics Linear Array Kit for Raspberry Pi.
Install seeed-voicecard
Get the seeed voice card source code and install all linux kernel drivers
git clone https://github.com/HinTak/seeed-voicecard
cd seeed-voicecard
sudo ./install.sh
sudo reboot
ReSpeaker Documentation
Up to date documentation for reSpeaker products can be found in Seeed Studio Wiki!
Coherence
Estimate the magnitude squared coherence using Welch’s method.
Note: 'CO 1-2' means the coherence between channel 1 and channel 2.
# How to get the coherence of the captured audio(a.wav for example).
sudo apt install python-numpy python-scipy python-matplotlib
python tools/coherence.py a.wav
# Requirement of the input audio file:
- format: WAV(Microsoft) signed 16-bit PCM
- channels: >=2
uninstall seeed-voicecard
If you want to upgrade the driver , you need uninstall the driver first.
pi@raspberrypi:~/seeed-voicecard $ sudo ./uninstall.sh
...
------------------------------------------------------
Please reboot your raspberry pi to apply all settings
Thank you!
------------------------------------------------------
Enjoy !
Technical support
For hardware testing purposes we made a Rasperry Pi OS 5.10.17-v7l+ 32-bit image with reSpeaker drivers pre-installed, which you can download by clicking on this link.
We provide official support for using reSpeaker with the following OS:
- 32-bit Raspberry Pi OS
- 64-bit Raspberry Pi OS
And following hardware platforms:
- Raspberry Pi 3 (all models), Raspberry Pi 4 (all models)
Anything beyond the scope of official support is considered to be community supported. Support for other OS/hardware platforms can be added, provided MOQ requirements can be met.
If you have a technical problem when using reSpeaker with one of the officially supported platforms/OS, feel free to create an issue on Github. For general questions or suggestions, please use Seeed forum.