Sorry for my late reply. I could not control the telescope yet. please help! Here is the output:

bao@bao-desktop:~$ dmesg | tail -n 20
[ 11.556640] brcmfmac: brcmf_add_if: ignore IF event
[ 11.565773] brcmfmac: power management disabled
[ 11.785255] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 11.785277] Bluetooth: BNEP filters: protocol multicast
[ 11.785302] Bluetooth: BNEP socket layer initialized
[ 12.760774] brcmfmac: brcmf_add_if: ERROR: netdev:wlan0 already exists
[ 12.760798] brcmfmac: brcmf_add_if: ignore IF event
[ 24.407431] fuse init (API version 7.23)
[ 30.436181] Bluetooth: RFCOMM TTY layer initialized
[ 30.436245] Bluetooth: RFCOMM socket layer initialized
[ 30.436297] Bluetooth: RFCOMM ver 1.11
[ 72.972470] usb 1-1.2: USB disconnect, device number 4
[ 74.744076] usb 1-1.2: new high-speed USB device number 7 using dwc_otg
[ 74.844944] usb 1-1.2: New USB device found, idVendor=04cc, idProduct=0000
[ 74.844965] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 74.844979] usb 1-1.2: Product: Meade eFinder Serial Emulator
[ 74.844991] usb 1-1.2: Manufacturer: Meade
[ 74.845002] usb 1-1.2: SerialNumber: 1234567890
[ 74.846371] cdc_acm 1-1.2:1.0: Zero length descriptor references
[ 74.846397] cdc_acm: probe of 1-1.2:1.0 failed with error -22

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