These devices always require at least one bulk-out endpoint so let core verify that. This avoids attempting to send bulk data to the default pipe when downloading firmware in boot mode. Note that further endpoints are still needed when not in boot mode. Signed-off-by: Johan Hovold <johan@xxxxxxxxxx> --- drivers/usb/serial/io_ti.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c index 989795ab064a..c315836793b3 100644 --- a/drivers/usb/serial/io_ti.c +++ b/drivers/usb/serial/io_ti.c @@ -2747,6 +2747,7 @@ static struct usb_serial_driver edgeport_1port_device = { .description = "Edgeport TI 1 port adapter", .id_table = edgeport_1port_id_table, .num_ports = 1, + .num_bulk_out = 1, .open = edge_open, .close = edge_close, .throttle = edge_throttle, @@ -2785,6 +2786,7 @@ static struct usb_serial_driver edgeport_2port_device = { .description = "Edgeport TI 2 port adapter", .id_table = edgeport_2port_id_table, .num_ports = 2, + .num_bulk_out = 1, .open = edge_open, .close = edge_close, .throttle = edge_throttle, -- 2.12.0 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html