sound/cards/serial-u16550.rst

7 * 0 - Roland Soundcanvas support (default)
8 * 1 - Midiator MS-124T support (1)
9 * 2 - Midiator MS-124W S/A mode (2)
10 * 3 - MS-124W M/B mode support (3)
11 * 4 - Generic device with multiple input support (4)
13 For the Midiator MS-124W, you must set the physical M-S and A-B
17 (midiCnD0-midiCnD15).  Whenever you write to a different substream, the driver
28 	/sbin/modprobe snd-serial-u16550 port=0x3f8 irq=4 speed=115200
34 	/sbin/modprobe snd-serial-u16550 port=0x3f8 irq=4 outs=4
36 In MS-124T mode, one raw MIDI substream is supported (midiCnD0); the outs
38 all four MIDI Out connectors.  Set the A-B switch and the speed module
41 Usage example for MS-124T, with A-B switch in A position:
45 	/sbin/modprobe snd-serial-u16550 port=0x3f8 irq=4 adaptor=1 \
48 In MS-124W S/A mode, one raw MIDI substream is supported (midiCnD0);
50 the same data to all four MIDI Out connectors at full MIDI speed.
56 	/sbin/modprobe snd-serial-u16550 port=0x3f8 irq=4 adaptor=2
58 In MS-124W M/B mode, the driver supports 16 ALSA raw MIDI substreams;
65 Out for each byte, so the aggregate data rate across all four MIDI Outs is
66 at most one byte every 520 us, as compared with the full MIDI data rate of
67 one byte every 320 us per port.
73 	/sbin/modprobe snd-serial-u16550 port=0x3f8 irq=4 adaptor=3
75 The MS-124W hardware's M/A mode is currently not supported. This mode allows
77 but does not allow sending the same byte simultaneously to multiple MIDI Outs.
82 Midiator models other than MS-124W and MS-124T are currently not supported.
83 Note that the suffix letter is significant; the MS-124 and MS-124B are not
84 compatible, nor are the other known models MS-101, MS-101B, MS-103, and MS-114.
86 but no units to experiment with.  The MS-124W support is tested with a real unit.
87 The MS-124T support is untested, but should work.