Dne 02. 02. 21 v 18:00 Bert Schiettecatte napsal(a): > Hi all > I am working on getting my ALSA machine driver and codecs working. I > ported over my code which was based on 4.11, and I'm using 5.9.12 at > the moment. At first sight everything seems to be working, but the hw: > , plughw: etc devices are missing and when I list the PCMs with > acrecord -L, I don't see any, even though arecord -l does show the > card. I am using buildroot for my rootfs. So I am wondering if this is > an issue with incorrectly defining the structs in my driver code, or > if this is an issue with missing package in my buildroot config, or if > this is due to a missing configuration file for ALSA in the rootfs. > Previously I was using an off the shelf linaro rootfs when I was still > on kernel version 4.11, and there the PCMs were showing up correctly > and I could see the multiple devices such as hw:, plughw:, dmix: etc. > Thanks! Add "defaults.namehint.extended true" line to your ~/.asoundrc or /etc/asound.conf file to list hw/plughw devices. For the driver test - 'aplay -l' is more relevant. Jaroslav -- Jaroslav Kysela <perex@xxxxxxxx> Linux Sound Maintainer; ALSA Project; Red Hat, Inc.
