diff options
| author | Takashi Iwai <tiwai@suse.de> | 2023-07-25 09:22:06 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-07-26 07:38:14 +0300 |
| commit | a85ff0db48c372063988f2072a07bd361ce9c4ef (patch) | |
| tree | d576d39c55765dba186cfdd83ec85c60fc25cd11 /Documentation/usb | |
| parent | 1b437d2fb3c1a8c7f2a8a096c0871c8e7c8d109e (diff) | |
| download | linux-a85ff0db48c372063988f2072a07bd361ce9c4ef.tar.xz | |
usb: gadget: midi2: More flexible MIDI 1.0 configuration
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>
Diffstat (limited to 'Documentation/usb')
| -rw-r--r-- | Documentation/usb/gadget-testing.rst | 34 |
1 files changed, 18 insertions, 16 deletions
diff --git a/Documentation/usb/gadget-testing.rst b/Documentation/usb/gadget-testing.rst index 1fb181d61322..394cd226bfae 100644 --- a/Documentation/usb/gadget-testing.rst +++ b/Documentation/usb/gadget-testing.rst @@ -1009,22 +1009,24 @@ Each Endpoint subdirectory contains a subdirectory "block.0", which represents the Function Block for Block 0 information. Its attributes are: - =============== =============================================== - name Function Block name string - direction Direction of this FB - 1: input, 2: output, or 3: bidirectional - first_group The first UMP Group number (0-15) - num_groups The number of groups in this FB (1-16) - ui_hint UI-hint of this FB - 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 (0-2) - 0: MIDI 2.0 device, - 1: MIDI 1.0 without restriction, or - 2: MIDI 1.0 with low speed - sysex8_streams Max number of SysEx8 streams (8 bit) - active Bool flag for FB activity (0 or 1) - =============== =============================================== + ================= =============================================== + name Function Block name string + direction Direction of this FB + 1: input, 2: output, or 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 UI-hint of this FB + 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 (0-2) + 0: MIDI 2.0 device, + 1: MIDI 1.0 without restriction, or + 2: MIDI 1.0 with low speed + sysex8_streams Max number of SysEx8 streams (8 bit) + active Bool flag for FB activity (0 or 1) + ================= =============================================== If multiple Function Blocks are required, you can add more Function Blocks by creating subdirectories "block.<num>" with the corresponding |