[BRLTTY] ioctl[KIOCSOUND] error 25: Inappropriate ioctl for device.

[Lars Bjørndal]

Hi!

Currently I use an old Handy Tech Braille Star 80 display on USB. When
navigating with the display, there is no sound from BRLTTY. I get lots
of:

Nov 30 08:59:30 fox brltty[20907]: ioctl[KIOCSOUND] error 25:
Inappropriate ioctl for device.

in my logs. The information about the USB port is the following when
connecting the cable:

[ 1783.924022] usb 3-2: new full-speed USB device number 4 using
uhci_hcd
[ 1784.140519] usb 3-2: New USB device found, idVendor=0921,
idProduct=1200
[ 1784.160640] usb 3-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 1784.182052] usb 3-2: Product: HandyLink USB
[ 1784.182054] usb 3-2: Manufacturer: Handy Tech Elektronik GmbH
[ 1784.182055] usb 3-2: SerialNumber: HL683
[ 1784.227602] belkin_sa 3-2:1.0: Belkin / Peracom / GoHubs USB Serial
Adapter c
onverter detected
[ 1784.253553] usb 3-2: bcdDevice: 0101, bfc: 1
[ 1784.253627] usb 3-2: Belkin / Peracom / GoHubs USB Serial Adapter
converter n
ow attached to ttyUSB0
[ 1786.838566] belkin ttyUSB0: Set baudrate error
[ 1787.619559] usb 3-2: usbfs: interface 0 claimed by belkin_sa while
'brltty' s
ets config #1
[ 1787.651526] belkin ttyUSB0: Belkin / Peracom / GoHubs USB Serial
Adapter conv
erter now disconnected from ttyUSB0
[ 1787.682298] belkin_sa 3-2:1.0: device disconnected

Is this a kernel driver problem, or can it be fixed from the BRLTTY
side?

Thanks and regards, Lars