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re: realtek bluetooth puzzle

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  re: realtek bluetooth puzzle Jude DaShiell <jdashiel@panix.com> - 2021-12-16 22:50 +0100
    Re: realtek bluetooth puzzle "Thomas Schmitt" <scdbackup@gmx.net> - 2021-12-16 23:40 +0100
      Re: realtek bluetooth puzzle deloptes <emanoil.kotsev@deloptes.org> - 2021-12-17 00:30 +0100
        Re: realtek bluetooth puzzle Jude DaShiell <jdashiel@panix.com> - 2021-12-17 01:00 +0100
          Re: realtek bluetooth puzzle deloptes <emanoil.kotsev@deloptes.org> - 2021-12-17 01:20 +0100
      Re: realtek bluetooth puzzle Andrei POPESCU <andreimpopescu@gmail.com> - 2021-12-18 12:00 +0100

#243198 — re: realtek bluetooth puzzle

Havbing removed the device I ran dmesg| wc -l.
Inserting the device I ran dmesg| wc -l again and got a difference of 11
lines.
So dmesg >dmesg.log and tail -11 dmesg.log got me this information.
[10200.545324] usb 3-1: Product: DISK
[10200.545329] usb 3-1: Manufacturer: Realtek
[10200.545637] usb-storage 3-1:1.0: USB Mass Storage device detected
[10200.546006] scsi host6: usb-storage 3-1:1.0
[10201.560487] scsi 6:0:0:0: CD-ROM            Realtek  Driver Storage
1.00 PQ: 0 ANSI: 0 CCS
[10201.566607] sr 6:0:0:0: [sr1] scsi3-mmc drive: 0x/0x caddy
[10201.588298] sr 6:0:0:0: Attached scsi CD-ROM sr1
[10201.721911] usb 3-1: reset high-speed USB device number 6 using
ehci-pci
[10232.215266] usb 3-1: reset high-speed USB device number 6 using
ehci-pci
[10262.935626] usb 3-1: reset high-speed USB device number 6 using
ehci-pci
[10293.655994] usb 3-1: reset high-speed USB device number 6 using
ehci-pci

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#243202

Hi,

Jude DaShiell wrote:
> [10200.545324] usb 3-1: Product: DISK
> [10200.545329] usb 3-1: Manufacturer: Realtek
> [10200.545637] usb-storage 3-1:1.0: USB Mass Storage device detected
> [10200.546006] scsi host6: usb-storage 3-1:1.0
> [10201.560487] scsi 6:0:0:0: CD-ROM            Realtek  Driver Storage 1.00 PQ: 0 ANSI: 0 CCS
> [10201.566607] sr 6:0:0:0: [sr1] scsi3-mmc drive: 0x/0x caddy
> [10201.588298] sr 6:0:0:0: Attached scsi CD-ROM sr1

Looks like the device is emulating a CD-ROM which offers driver files
to MS-Windows for automatic installation. The web says that this happens
when the device does not get the right answers from the operating system
which indicate that the drivers are already installed.

An Archlinux thread proposes to use a program named usb_modeswitch to get
the device out of this mode
  https://bbs.archlinux.org/viewtopic.php?id=228195
Debian has it in a package
  https://tracker.debian.org/pkg/usb-modeswitch

I find its home page somehow confusing
  https://www.draisberghof.de/usb_modeswitch/
But the web says that it is supposed to work automagically for known
devices.


Have a nice day :)

Thomas

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#243206

Thomas Schmitt wrote:

> I find its home page somehow confusing
> https://www.draisberghof.de/usb_modeswitch/
> But the web says that it is supposed to work automagically for known
> devices.

may be OP is needing the firmware and this mode is a fallout mode. It is
strange if it would need usb_modeswitch.
Also it is strange that it does not try anything else first.

-- 
FCD6 3719 0FFB F1BF 38EA 4727 5348 5F1F DCFE BCB0

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#243209

I have firmware-realtek installed for wireless devices and that's all
debian offers.


On Fri, 17 Dec 2021, deloptes wrote:

> Thomas Schmitt wrote:
>
> > I find its home page somehow confusing
> > https://www.draisberghof.de/usb_modeswitch/
> > But the web says that it is supposed to work automagically for known
> > devices.
>
> may be OP is needing the firmware and this mode is a fallout mode. It is
> strange if it would need usb_modeswitch.
> Also it is strange that it does not try anything else first.
>
>

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#243211

Jude DaShiell wrote:

> I have firmware-realtek installed for wireless devices and that's all
> debian offers.

but sometime if it is a new device on the market you may need either to wait
for the firmware to go to the package or you can download from vendor or
you can extract from the windows package

Anyway - by price of BT USB dongles around 12,- it is perhaps worth to
return and find a supported one

Before doing this perhaps try on another linux if available

-- 
FCD6 3719 0FFB F1BF 38EA 4727 5348 5F1F DCFE BCB0

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#243231

[Multipart message — attachments visible in raw view] — view raw

On Jo, 16 dec 21, 23:30:37, Thomas Schmitt wrote:
> Hi,
> 
> Jude DaShiell wrote:
> > [10200.545324] usb 3-1: Product: DISK
> > [10200.545329] usb 3-1: Manufacturer: Realtek
> > [10200.545637] usb-storage 3-1:1.0: USB Mass Storage device detected
> > [10200.546006] scsi host6: usb-storage 3-1:1.0
> > [10201.560487] scsi 6:0:0:0: CD-ROM            Realtek  Driver Storage 1.00 PQ: 0 ANSI: 0 CCS
> > [10201.566607] sr 6:0:0:0: [sr1] scsi3-mmc drive: 0x/0x caddy
> > [10201.588298] sr 6:0:0:0: Attached scsi CD-ROM sr1
> 
> Looks like the device is emulating a CD-ROM which offers driver files
> to MS-Windows for automatic installation. The web says that this happens
> when the device does not get the right answers from the operating system
> which indicate that the drivers are already installed.

Indeed it does look like it.
 
> An Archlinux thread proposes to use a program named usb_modeswitch to get
> the device out of this mode
>   https://bbs.archlinux.org/viewtopic.php?id=228195
> Debian has it in a package
>   https://tracker.debian.org/pkg/usb-modeswitch
> 
> I find its home page somehow confusing
>   https://www.draisberghof.de/usb_modeswitch/
> But the web says that it is supposed to work automagically for known
> devices.

In most cases a simple 'eject' command is sufficient, so based on the 
above something like this might do it:

    eject /dev/sr1


The command `eject` is in the package with the same name.

Kind regards,
Andrei
-- 
http://wiki.debian.org/FAQsFromDebianUser

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