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usb.c

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  • Marek Vasut's avatar
    ef71290b
    usb: Assure Get Descriptor request is in separate microframe · ef71290b
    Marek Vasut authored 
    
The Kingston DT Ultimate USB 3.0 stick is sensitive to this first
Get Descriptor request and if the request is not in a separate
microframe, the stick refuses to operate. Add slight delay, which
is enough for one microframe to pass on any USB spec revision.

Signed-off-by: default avatarMarek Vasut <marex@denx.de>
Cc: Chin Liang See <clsee@altera.com>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Stephen Warren <swarren@nvidia.com>
    ef71290b
    History
    usb: Assure Get Descriptor request is in separate microframe
    Marek Vasut authored 
    
The Kingston DT Ultimate USB 3.0 stick is sensitive to this first
Get Descriptor request and if the request is not in a separate
microframe, the stick refuses to operate. Add slight delay, which
is enough for one microframe to pass on any USB spec revision.

Signed-off-by: default avatarMarek Vasut <marex@denx.de>
Cc: Chin Liang See <clsee@altera.com>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Stephen Warren <swarren@nvidia.com>