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Diffstat (limited to 'Documentation/ABI/testing/configfs-most')
| -rw-r--r-- | Documentation/ABI/testing/configfs-most | 241 |
1 files changed, 241 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/configfs-most b/Documentation/ABI/testing/configfs-most new file mode 100644 index 000000000..bc6b8bd18 --- /dev/null +++ b/Documentation/ABI/testing/configfs-most @@ -0,0 +1,241 @@ +What: /sys/kernel/config/most_<component> +Date: March 8, 2019 +KernelVersion: 5.2 +Description: Interface is used to configure and connect device channels + to component drivers. + + Attributes are visible only when configfs is mounted. To mount + configfs in /sys/kernel/config directory use: + # mount -t configfs none /sys/kernel/config/ + + +What: /sys/kernel/config/most_cdev/<link> +Date: March 8, 2019 +KernelVersion: 5.2 +Description: + The attributes: + + buffer_size + configure the buffer size for this channel + + subbuffer_size + configure the sub-buffer size for this channel + (needed for synchronous and isochrnous data) + + + num_buffers + configure number of buffers used for this + channel + + datatype + configure type of data that will travel over + this channel + + direction + configure whether this link will be an input + or output + + dbr_size + configure DBR data buffer size (this is used + for MediaLB communication only) + + packets_per_xact + configure the number of packets that will be + collected from the network before being + transmitted via USB (this is used for USB + communication only) + + device + name of the device the link is to be attached to + + channel + name of the channel the link is to be attached to + + comp_params + pass parameters needed by some components + + create_link + write '1' to this attribute to trigger the + creation of the link. In case of speculative + configuration, the creation is post-poned until + a physical device is being attached to the bus. + + destroy_link + write '1' to this attribute to destroy an + active link + +What: /sys/kernel/config/most_video/<link> +Date: March 8, 2019 +KernelVersion: 5.2 +Description: + The attributes: + + buffer_size + configure the buffer size for this channel + + subbuffer_size + configure the sub-buffer size for this channel + (needed for synchronous and isochrnous data) + + + num_buffers + configure number of buffers used for this + channel + + datatype + configure type of data that will travel over + this channel + + direction + configure whether this link will be an input + or output + + dbr_size + configure DBR data buffer size (this is used + for MediaLB communication only) + + packets_per_xact + configure the number of packets that will be + collected from the network before being + transmitted via USB (this is used for USB + communication only) + + device + name of the device the link is to be attached to + + channel + name of the channel the link is to be attached to + + comp_params + pass parameters needed by some components + + create_link + write '1' to this attribute to trigger the + creation of the link. In case of speculative + configuration, the creation is post-poned until + a physical device is being attached to the bus. + + destroy_link + write '1' to this attribute to destroy an + active link + +What: /sys/kernel/config/most_net/<link> +Date: March 8, 2019 +KernelVersion: 5.2 +Description: + The attributes: + + buffer_size + configure the buffer size for this channel + + subbuffer_size + configure the sub-buffer size for this channel + (needed for synchronous and isochrnous data) + + + num_buffers + configure number of buffers used for this + channel + + datatype + configure type of data that will travel over + this channel + + direction + configure whether this link will be an input + or output + + dbr_size + configure DBR data buffer size (this is used + for MediaLB communication only) + + packets_per_xact + configure the number of packets that will be + collected from the network before being + transmitted via USB (this is used for USB + communication only) + + device + name of the device the link is to be attached to + + channel + name of the channel the link is to be attached to + + comp_params + pass parameters needed by some components + + create_link + write '1' to this attribute to trigger the + creation of the link. In case of speculative + configuration, the creation is post-poned until + a physical device is being attached to the bus. + + destroy_link + write '1' to this attribute to destroy an + active link + +What: /sys/kernel/config/most_sound/<card> +Date: March 8, 2019 +KernelVersion: 5.2 +Description: + The attributes: + + create_card + write '1' to this attribute to trigger the + registration of the sound card with the ALSA + subsystem. + +What: /sys/kernel/config/most_sound/<card>/<link> +Date: March 8, 2019 +KernelVersion: 5.2 +Description: + The attributes: + + buffer_size + configure the buffer size for this channel + + subbuffer_size + configure the sub-buffer size for this channel + (needed for synchronous and isochrnous data) + + + num_buffers + configure number of buffers used for this + channel + + datatype + configure type of data that will travel over + this channel + + direction + configure whether this link will be an input + or output + + dbr_size + configure DBR data buffer size (this is used + for MediaLB communication only) + + packets_per_xact + configure the number of packets that will be + collected from the network before being + transmitted via USB (this is used for USB + communication only) + + device + name of the device the link is to be attached to + + channel + name of the channel the link is to be attached to + + comp_params + pass parameters needed by some components + + create_link + write '1' to this attribute to trigger the + creation of the link. In case of speculative + configuration, the creation is post-poned until + a physical device is being attached to the bus. + + destroy_link + write '1' to this attribute to destroy an + active link |