ng USB MIDI packet has a wrong CIN (4 instead of 9) and a wrong length (2 bytes, the status byte is still missing). This patch adds a workaround to track the CINs and the MIDI messages of received USB MIDI packets to detect whether a packet with CIN 4 is a correct SysEx packet or a buggy running status packet. Signed-off-by: Clemens Ladisch Signed-off-by: Jaroslav Kysela ,ú+é–@x