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This patch allows users to set up MIDI 1.0 ports more flexibly. Namely, instead of the fixed mapping only from FB 0, now multiple block definitions are applied to build up the MIDI 1.0 mapping. The each block config has midi1_first_group and midi1_num_groups attributes, and those specify which Groups are used for MIDI 1.0. Those fields must be within the UMP Groups defined in the block itself. Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20230725062206.9674-8-tiwai@suse.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2.0 KiB
2.0 KiB
What: /config/usb-gadget/gadget/functions/midi2.name Date: Jul 2023 KernelVersion: 6.6 Description: The attributes:
============ ===============================================
process_ump Flag to process UMP Stream messages (0 or 1)
static_block Flag for static blocks (0 or 1)
iface_name MIDI interface name string
============ ===============================================
What: /config/usb-gadget/gadget/functions/midi2.name/ep.number Date: Jul 2023 KernelVersion: 6.6 Description: This group contains a UMP Endpoint configuration. A new Endpoint starts from 0, and can be up to 3.
The attributes:
============= ===============================================
protocol_caps MIDI protocol capabilities (1, 2 or 3 for both)
protocol Default MIDI protocol (1 or 2)
ep_name UMP Endpoint name string
product_id Product ID string
manufacturer Manufacture ID (24 bit)
family Device family ID (16 bit)
model Device model ID (16 bit)
sw_revision Software Revision (32 bit)
============= ===============================================
What: /config/usb-gadget/gadget/functions/midi2.name/ep.number/block.number Date: Jul 2023 KernelVersion: 6.6 Description: This group contains a UMP Function Block configuration. A new block starts from 0, and can be up to 31.
The attributes:
================= ==============================================
name Function Block name string
direction 1: input, 2: output, 3: bidirectional
first_group The first UMP Group number (0-15)
num_groups The number of groups in this FB (1-16)
midi1_first_group The first UMP Group number for MIDI 1.0 (0-15)
midi1_num_groups The number of groups for MIDI 1.0 (0-16)
ui_hint 0: unknown, 1: receiver, 2: sender, 3: both
midi_ci_verison Supported MIDI-CI version number (8 bit)
is_midi1 Legacy MIDI 1.0 device (0, 1 or 2)
sysex8_streams Max number of SysEx8 streams (8 bit)
active Active FB flag (0 or 1)
================= ==============================================