<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
</head>
<body>
Hello all,<br>
<br>
I'm helping a blind user with a Freedom Scientific focus blue with
the id "0f4e:0114". I don't know the exact model sorry. It seems
lsusb dosn't provide us detailed informations about the device.<br>
<br>
He uses:<br>
<ul>
<li>Debian 10 "Buster"</li>
<li>BRLTTY 6.1</li>
<li>The Linux kernel 5.8.10</li>
</ul>
<br>
BRLTTY floods the syslog and daemon files with the following logs:<br>
<blockquote type="cite">kernel: [ 1988.905326] usb 1-3: usbfs:
USBDEVFS_CONTROL failed cmd brltty rqt 128 rq 6 len 255 ret -71<br>
kernel: [ 1988.905587] usb 1-3: usbfs: USBDEVFS_CONTROL failed cmd
brltty rqt 128 rq 6 len 255 ret -71<br>
kernel: [ 1988.905755] usb 1-3: usbfs: USBDEVFS_CONTROL failed cmd
brltty rqt 128 rq 6 len 255 ret -71<br>
kernel: [ 1988.905824] xhci_hcd 0000:00:14.0: Trying to add
endpoint 0x1 without dropping it.<br>
kernel: [ 1988.905967] usb 1-3: usbfs: USBDEVFS_CONTROL failed cmd
brltty rqt 128 rq 6 len 255 ret -71<br>
brltty[3434]: USB language code string read error<br>
brltty[3434]: USB control transfer error 71: Erreur de protocole<br>
brltty[3434]: USB language code string read error<br>
brltty[3434]: USB configuration set error 22: Argument invalide<br>
brltty[3434]: USB control transfer error 71: Erreur de protocole<br>
brltty[3434]: USB configuration descriptor not readable: 0<br>
brltty[3434]: USB configuration descriptor not found: 1</blockquote>
<br>
It has produced 5 GB of logs and prevented X.Org to start.<br>
<br>
Based on our tests, the Braille device works. <br>
<br>
Moving the log level to emergency doesn't seem to have produce any
effects. Defining the log file to /tmp/brltty.log continues to
pollute the syslog and daemon.log.<br>
<br>
What can we do to improve the situation? Currently we've unplugged
the Focus Blue and stop BRLTTY.<br>
<br>
Thanks in advance for any help you could provide,<br>
Alex.<br>
</body>
</html>