option to ignore flash memory device at USB1.1 "full" speed
jreiser at bitwagon.com
Sun Jun 16 21:25:04 UTC 2013
On 06/15/2013 09:38 PM, Matthew Garrett wrote:
> On Sat, Jun 15, 2013 at 08:24:33AM -0700, John Reiser wrote:
>> How can I force the system not to recognize a USB2.0 flash memory device at USB1.1 speed?
> You can't - it's negotiated at the host controller level, the OS isn't involved.
Thus after the host controller hardware negotiates a slow connection,
then perhaps a udev rule might detect (see "lsusb -v"):
bcdUSB < 2.00
bInterfaceClass = 8 Mass Storage
bInterfaceProtocol = 80 Bulk (Zip)
and raise a warning for me. Or perhaps I should consider working with
the dbus, or (depending on the desktop environment) enhancing the auto-
mounting apparatus. I really dislike USB storage at only 1.5MB/s.
More information about the devel