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Interrupt packets (limited by wMaxPacketSize) should be buffered and merged by algorithm described in USB spec. (see usb_20.pdf/5.7.3 Interrupt Transfer Packet Size Constraints). Signed-off-by: Martin Cerveny <M.Cerveny@computer.org> Message-id: 20190724125859.14624-2-M.Cerveny@computer.org Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>