1 What: /sys/kernel/config/most_<component>
4 Description: Interface is used to configure and connect device channels
7 Attributes are visible only when configfs is mounted. To mount
8 configfs in /sys/kernel/config directory use:
9 # mount -t configfs none /sys/kernel/config/
12 What: /sys/kernel/config/most_cdev/<link>
18 buffer_size configure the buffer size for this channel
20 subbuffer_size configure the sub-buffer size for this channel
21 (needed for synchronous and isochrnous data)
24 num_buffers configure number of buffers used for this
27 datatype configure type of data that will travel over
30 direction configure whether this link will be an input
33 dbr_size configure DBR data buffer size (this is used
34 for MediaLB communication only)
37 configure the number of packets that will be
38 collected from the network before being
39 transmitted via USB (this is used for USB
42 device name of the device the link is to be attached to
44 channel name of the channel the link is to be attached to
46 comp_params pass parameters needed by some components
48 create_link write '1' to this attribute to trigger the
49 creation of the link. In case of speculative
50 configuration, the creation is post-poned until
51 a physical device is being attached to the bus.
53 destroy_link write '1' to this attribute to destroy an
56 What: /sys/kernel/config/most_video/<link>
62 buffer_size configure the buffer size for this channel
64 subbuffer_size configure the sub-buffer size for this channel
65 (needed for synchronous and isochrnous data)
68 num_buffers configure number of buffers used for this
71 datatype configure type of data that will travel over
74 direction configure whether this link will be an input
77 dbr_size configure DBR data buffer size (this is used
78 for MediaLB communication only)
81 configure the number of packets that will be
82 collected from the network before being
83 transmitted via USB (this is used for USB
86 device name of the device the link is to be attached to
88 channel name of the channel the link is to be attached to
90 comp_params pass parameters needed by some components
92 create_link write '1' to this attribute to trigger the
93 creation of the link. In case of speculative
94 configuration, the creation is post-poned until
95 a physical device is being attached to the bus.
97 destroy_link write '1' to this attribute to destroy an
100 What: /sys/kernel/config/most_net/<link>
106 buffer_size configure the buffer size for this channel
108 subbuffer_size configure the sub-buffer size for this channel
109 (needed for synchronous and isochrnous data)
112 num_buffers configure number of buffers used for this
115 datatype configure type of data that will travel over
118 direction configure whether this link will be an input
121 dbr_size configure DBR data buffer size (this is used
122 for MediaLB communication only)
125 configure the number of packets that will be
126 collected from the network before being
127 transmitted via USB (this is used for USB
130 device name of the device the link is to be attached to
132 channel name of the channel the link is to be attached to
134 comp_params pass parameters needed by some components
136 create_link write '1' to this attribute to trigger the
137 creation of the link. In case of speculative
138 configuration, the creation is post-poned until
139 a physical device is being attached to the bus.
141 destroy_link write '1' to this attribute to destroy an
144 What: /sys/kernel/config/most_sound/<card>
150 create_card write '1' to this attribute to trigger the
151 registration of the sound card with the ALSA
154 What: /sys/kernel/config/most_sound/<card>/<link>
160 buffer_size configure the buffer size for this channel
162 subbuffer_size configure the sub-buffer size for this channel
163 (needed for synchronous and isochrnous data)
166 num_buffers configure number of buffers used for this
169 datatype configure type of data that will travel over
172 direction configure whether this link will be an input
175 dbr_size configure DBR data buffer size (this is used
176 for MediaLB communication only)
179 configure the number of packets that will be
180 collected from the network before being
181 transmitted via USB (this is used for USB
184 device name of the device the link is to be attached to
186 channel name of the channel the link is to be attached to
188 comp_params pass parameters needed by some components
190 create_link write '1' to this attribute to trigger the
191 creation of the link. In case of speculative
192 configuration, the creation is post-poned until
193 a physical device is being attached to the bus.
195 destroy_link write '1' to this attribute to destroy an
198 What: /sys/kernel/config/rdma_cm/<hca>/ports/<port-num>/default_roce_tos
201 Description: RDMA-CM QPs from HCA <hca> at port <port-num>
202 will be created with this TOS as default.
203 This can be overridden by using the rdma_set_option API.
204 The possible RoCE TOS values are 0-255.