jacob@ein ~ $ sudo /usr/sbin/usbmuxd -vvv -f
[13:40:39.409][3] usbmuxd v1.0.4 starting up
[13:40:39.409][4] Creating socket
[13:40:39.409][5] client_init
[13:40:39.409][5] device_init
[13:40:39.409][4] Initializing USB
[13:40:39.409][5] usb_init for linux / libusb 1.0
[13:40:39.410][6] usb_discover: scanning 11 devices
[13:40:39.410][4] 0 devices detected
[13:40:39.410][3] Initialization complete
[13:40:40.412][6] usb_discover: scanning 11 devices
[13:40:41.414][6] usb_discover: scanning 11 devices
[13:40:42.415][6] usb_discover: scanning 11 devices
[13:40:43.417][6] usb_discover: scanning 11 devices
[13:40:44.419][6] usb_discover: scanning 11 devices
[13:40:45.420][6] usb_discover: scanning 11 devices
[13:40:46.422][6] usb_discover: scanning 11 devices
[13:40:47.424][6] usb_discover: scanning 11 devices
[13:40:48.425][6] usb_discover: scanning 11 devices
[13:40:49.427][6] usb_discover: scanning 11 devices
[13:40:50.429][6] usb_discover: scanning 11 devices
[13:40:51.430][6] usb_discover: scanning 11 devices
[13:40:52.018][4] New client on fd 8
[13:40:52.018][5] Client command in fd 8 len 16 ver 0 msg 3 tag 2
[13:40:52.018][5] send_pkt fd 8 tag 2 msg 1 payload_length 4
[13:40:52.018][5] Client 8 now LISTENING
[13:40:52.431][6] usb_discover: scanning 12 devices
[13:40:52.431][4] Found new device with v/p 05ac:1299 at 2-36
[13:40:52.435][4] Using wMaxPacketSize=512 for device 2-36
[13:40:52.435][3] Connecting to new device on location 0x20024 as ID 1
[13:40:52.435][6] send_packet(1, 0x0, 0x7fff40d1e940, (nil), 0)
[13:40:52.435][1] Failed to submit TX transfer 0x238dbc0 len 20 to device
2-36: -1
[13:40:52.435][1] usb_send failed while sending packet (len 20) to device 1:
-1
[13:40:52.435][1] Error sending version request packet to device 1

[13:40:53.018][4] Client 8 connection closed
[13:40:53.018][4] Disconnecting client fd 8
[13:40:53.436][6] usb_discover: scanning 12 devices
[13:40:53.436][4] Found new device with v/p 05ac:1299 at 2-36
[13:40:53.437][4] Using wMaxPacketSize=512 for device 2-36
[13:40:53.437][3] Connecting to new device on location 0x20024 as ID 2
[13:40:53.437][6] send_packet(2, 0x0, 0x7fff40d1e940, (nil), 0)
[13:40:53.437][1] Failed to submit TX transfer 0x238c240 len 20 to device
2-36: -1
[13:40:53.437][1] usb_send failed while sending packet (len 20) to device 2:
-1
[13:40:53.437][1] Error sending version request packet to device 2

[13:40:53.518][4] New client on fd 8
[13:40:53.518][5] Client command in fd 8 len 16 ver 0 msg 3 tag 2
[13:40:53.518][5] send_pkt fd 8 tag 2 msg 1 payload_length 4
[13:40:53.518][5] Client 8 now LISTENING
[13:40:54.438][6] usb_discover: scanning 12 devices
[13:40:54.438][4] Found new device with v/p 05ac:1299 at 2-36
[13:40:54.439][4] Using wMaxPacketSize=512 for device 2-36
[13:40:54.439][3] Connecting to new device on location 0x20024 as ID 3
[13:40:54.439][6] send_packet(3, 0x0, 0x7fff40d1e940, (nil), 0)
[13:40:54.439][1] Failed to submit TX transfer 0x238d8d0 len 20 to device
2-36: -1
[13:40:54.439][1] usb_send failed while sending packet (len 20) to device 3:
-1
[13:40:54.439][1] Error sending version request packet to device 3

[13:40:54.519][4] Client 8 connection closed
[13:40:54.519][4] Disconnecting client fd 8
[13:40:55.020][4] New client on fd 8
[13:40:55.020][5] Client command in fd 8 len 16 ver 0 msg 3 tag 2
[13:40:55.020][5] send_pkt fd 8 tag 2 msg 1 payload_length 4
[13:40:55.020][5] Client 8 now LISTENING
[13:40:55.440][6] usb_discover: scanning 12 devices
[13:40:55.440][4] Found new device with v/p 05ac:1299 at 2-36
[13:40:55.441][4] Using wMaxPacketSize=512 for device 2-36
[13:40:55.441][3] Connecting to new device on location 0x20024 as ID 4
[13:40:55.441][6] send_packet(4, 0x0, 0x7fff40d1e940, (nil), 0)
[13:40:55.441][1] Failed to submit TX transfer 0x238d8d0 len 20 to device
2-36: -1
[13:40:55.441][1] usb_send failed while sending packet (len 20) to device 4:
-1
[13:40:55.442][1] Error sending version request packet to device 4

[13:40:56.021][4] Client 8 connection closed
[13:40:56.021][4] Disconnecting client fd 8
[13:40:56.442][6] usb_discover: scanning 12 devices
[13:40:56.442][4] Found new device with v/p 05ac:1299 at 2-36
[13:40:56.444][4] Using wMaxPacketSize=512 for device 2-36
[13:40:56.444][3] Connecting to new device on location 0x20024 as ID 5
[13:40:56.444][6] send_packet(5, 0x0, 0x7fff40d1e940, (nil), 0)
[13:40:56.444][1] Failed to submit TX transfer 0x238d340 len 20 to device
2-36: -1
[13:40:56.444][1] usb_send failed while sending packet (len 20) to device 5:
-1
[13:40:56.444][1] Error sending version request packet to device 5

[13:40:56.444][5] usb_disconnect: cancelling RX xfer