linux-kernel - usbserial speed limitations ?

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20100204095855.10993d1a@tux.DEF.witbe.net>
Date:	Thu, 4 Feb 2010 09:58:55 +0100
From:	Paul Rolland <rol@...917.net>
To:	LKML <linux-kernel@...r.kernel.org>
Subject: usbserial speed limitations ?

Hello,

I'm about to start working with a new USB 3G+ modem (Novatel Wireless
M996D), details :

  Product ID:	0x5023
  Vendor ID:	0x1410  (Novatel Wireless, Inc.)
  Version:	 0.00
  Speed:	Up to 480 Mb/sec
  Manufacturer:	Novatel Wireless, Inc

>From the manufacturer web site, regarding the installation, I can read :

"Maximum connection speed is limited by the current generic usbserial
driver to approximately less than 500kbps."

Is there really such a speed limitation in the usbserial module/driver ?
This modem is HSPA+, which should allow a theorical maximum downspeed of
20MBps, not 500kbps...

The machine intended for such use in 2.6.28.x. Is there any chance to have
something better with a newer kernel ?

Any help / hint appreciated...

Regards,
Paul
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/