From: Oliver Neukum <oliver@neukum.org>
To: Paul Rolland <rol@as2917.net>
Cc: LKML <linux-kernel@vger.kernel.org>, linux-usb@vger.kernel.org
Subject: Re: usbserial speed limitations ?
Date: Thu, 4 Feb 2010 12:26:21 +0100 [thread overview]
Message-ID: <201002041226.21379.oliver@neukum.org> (raw)
In-Reply-To: <20100204095855.10993d1a@tux.DEF.witbe.net>
Am Donnerstag, 4. Februar 2010 09:58:55 schrieb Paul Rolland:
> "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...
In the generic usbserial driver this speed limit indeed exists.
But you are not supposed to use it with that kind of device.
Most likely the correct driver would be either option or sierra.
Please post lsusb -v for your device.
Regards
Oliver
next prev parent reply other threads:[~2010-02-04 11:26 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-04 8:58 usbserial speed limitations ? Paul Rolland
2010-02-04 11:26 ` Oliver Neukum [this message]
2010-02-04 11:45 ` Paul Rolland
2010-02-04 11:56 ` Oliver Neukum
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