| commit | 8ddcc43592f215a7523774704df6c60d12d9f647 | |
| author | Gerd Hoffmann <kraxel@redhat.com> | |
| Fri, 17 Jan 2020 07:37:16 +0000 (17 08:37 +0100) | ||
| committer | Gerd Hoffmann <kraxel@redhat.com> | |
| Wed, 12 Feb 2020 16:20:41 +0000 (12 17:20 +0100) | ||
| tree | b9c2f7e13af0fad8702eda012691a2b3a121c5da | treesnapshot (tar.gz zip) |
| parent | 76d0a9362c6a6a7d88aa18c84c4186c9107ecaef | commitdiff |
uas: fix super speed bMaxPacketSize0
For usb2 bMaxPacketSize0 is "n", for usb3 it is "1 << n",
so it must be 9 not 64 ...
rom "Universal Serial Bus 3.1 Specification":
If the device is operating at Gen X speed, the bMaxPacketSize0
field shall be set to 09H indicating a 512-byte maximum packet.
An Enhanced SuperSpeed device shall not support any other maximum
packet sizes for the default control pipe (endpoint 0) control
endpoint.
We now announce a 512-byte maximum packet.
Fixes: 89a453d4a5c ("uas-uas: usb3 streams")
Reported-by: Benjamin David Lunt <fys@fysnet.net>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200117073716.31335-1-kraxel@redhat.com
For usb2 bMaxPacketSize0 is "n", for usb3 it is "1 << n",
so it must be 9 not 64 ...
rom "Universal Serial Bus 3.1 Specification":
If the device is operating at Gen X speed, the bMaxPacketSize0
field shall be set to 09H indicating a 512-byte maximum packet.
An Enhanced SuperSpeed device shall not support any other maximum
packet sizes for the default control pipe (endpoint 0) control
endpoint.
We now announce a 512-byte maximum packet.
Fixes: 89a453d4a5c ("uas-uas: usb3 streams")
Reported-by: Benjamin David Lunt <fys@fysnet.net>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200117073716.31335-1-kraxel@redhat.com
| hw/usb/dev-uas.c | diffblobblamehistory |