[BRLTTY] xbrlapi can't read keys from brlapi

[Life in Six Dots]

I agree with you. I’m having the same problem with BRLTTY 6.5, and 6.4. I found that the sys_admin, cap_sys_tty_config, and cap_mknod have not been granted. If I tried the command brltty-setcaps, I error that the command is not found. Here is my output when I look at BRLTTY –version:

 

BRLTTY 6.5 rev BRLTTY-6.5 [https://brltty.app/]

brltty: Log Level: none

brltty: Messages Locale: en_US.UTF-8

brltty: Messages Domain: brltty

brltty: Messages Directory: /usr/share/locale

brltty: Autospeak Threshold: none

brltty: Privilege Parameter: path=

brltty: Privilege Parameter: scfmode=

brltty: Privilege Parameter: shell=

brltty: Privilege Parameter: user=

brltty: can't isolate namespaces

brltty: executing as the invoking user: paul

brltty: can't set supplementary groups

brltty: group not joined: 0(root)

brltty: group not joined: 5(tty)

brltty: group not joined: 20(dialout)

brltty: group not joined: 29(audio)

brltty: group not joined: 102(input)

brltty: required capability not granted: cap_sys_admin (for injecting input characters typed on a braille device)

brltty: required capability not granted: cap_sys_tty_config (for playing alert tunes via the built-in PC speaker)

brltty: required capability not granted: cap_mknod (for creating needed but missing special device files)

brltty: Copyright © 1995-2022 by The BRLTTY Developers

brltty: BrlAPI Server: release 0.8.4

brltty:    Copyright (C) 2002-2022 by Sébastien Hinderer Sebastien.Hinderer at ens-lyon.org <mailto:Sebastien.Hinderer at ens-lyon.org> , Samuel Thibault <samuel.thibault at ens-lyon.org

 

Paul

 

From: BRLTTY <brltty-bounces at brltty.app> On Behalf Of payman shaykhmehdi
Sent: Monday, August 21, 2023 1:16 PM
To: Informal discussion between users and developers of BRLTTY. <BRLTTY at brltty.app>
Subject: [BRLTTY] xbrlapi can't read keys from brlapi

 

I've compiled brltty 6.6 in ubuntu 20.04.6 LTS. Braille output in X windows and graphical apps works great.

 But the problem is with braille input. It seems that xbrlapi can not read keys from brlapi connection.

I think that it is a permissions issue, due to usb device permission, I'm running brltty with root permission and running xbrlapi with root privileges doesn't make any difference.

 

 

Also these logs from brltty doesn't look good :

 

brltty: can't isolate namespaces
brltty: can't set supplementary groups
brltty: group not joined: 5(tty)
brltty: group not joined: 20(dialout)
brltty: group not joined: 29(audio)
brltty: group not joined: 106(input)
brltty: group not joined: 115(pulse-access)

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