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| Line 133: |
Line 133: |
| {{#ev:youtube|nSxXXZTD5rc}} | | {{#ev:youtube|nSxXXZTD5rc}} |
| (The C-Note Files - Episode 13: Tutorial - PS4 Voice Recognition) | | (The C-Note Files - Episode 13: Tutorial - PS4 Voice Recognition) |
|
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| == Analysis ==
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| === USB ===
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| ==== Device Descriptor ====
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|
| |
| <div style="height:600px; width:600px; overflow:auto">
| |
| {| class="wikitable"
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| |-
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| ! colspan="5" style="background-color:#C0C0C0; color:#000000;" |[http://linuxcommand.org/man_pages/lsusb8.html Device Descriptor]
| |
| |-
| |
| ! Offset
| |
| ! Field
| |
| ! Size
| |
| ! Value
| |
| ! Description
| |
| |-
| |
| | 0 || bLength || 1 || 0x12 || Size of this descriptor in bytes (18)
| |
| |-
| |
| | 1 || bDescriptorType || 1 || 0x01 || DEVICE descriptor type (Constant = 1)
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| |-
| |
| | 2 || bcdUSB || 2 || 0x0300 || USB Spec release number ([http://en.wikipedia.org/wiki/USB#USB_3.0 3.00]):
| |
| <small>with which the device and is descriptors are compliant (e.g.: 0x0200 (USB2.0), 0x0300,
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| ([[USB_3.0|USB3.0]]))</small>
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| |-
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| | 4 || bDeviceClass || 1 || 0x00 || [http://www.usb.org/developers/defined_class Class code] assigned by [http://en.wikipedia.org/wiki/USB_Implementers_Forum USB-IF]
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| <small>(used by the operating system to find a class driver for your device)</small>
| |
| <small>
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| *00h means each interface defines its own class (identify itself at the interface level: bInterfaceClass )
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| *FFh means vendor-defined class
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| *Any other value must be a class code
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| </small>
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| |-
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| | 5 || bDeviceSubClass || 1 || 0x00 || SubClass Code assigned by USB-IF
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| <small>(used by the operating system to find a class driver for your device)</small>
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| |-
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| | 6 || bDeviceProtocol || 1 || 0x00 || Protocol Code assigned by USB-IF
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| <small>(used by the operating system to find a class driver for your device)</small>
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| |-
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| | 7 || bMaxPacketSize0 || 1 || 0x09 || Max packet size for endpoint 0.
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| <small>
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| *Must be 8, 16, 32 or 64
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| *Must be 9 according to [http://www.usb.org/developers/tools/USB30CVSpec_1_4.pdf Compliance Test Specification for the USB 3.0 Architecture p29 9.1]
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| </small>
| |
| |-
| |
| | 8 || idVendor || 2 || 0x05a9 || [http://www.linux-usb.org/usb.ids Vendor ID (VID)] (OmniVision Technologies, Inc.) - must be obtained from USB-IF
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| <small>(used by the operating system to find a driver for your device)</small>
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| |-
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| | 10 || idProduct || 2 || 0x0580 || Product ID (PID) - assigned by the manufacturer
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| <small>(used by the operating system to find a driver for your device)</small>
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| |-
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| | 12 || bcdDevice || 2 || 0x0100 || Device release number (Version: 1.00)
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| <small>in binary coded decimal</small>
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| |-
| |
| | 14 || iManufacturer || 1 || 0x01 || Index of string descriptor describing manufacturer
| |
| <small>set to 0 if no string</small>
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| |-
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| | 15 || iProduct || 1 || 0x02 || Index of string descriptor describing product
| |
| <small>set to 0 if no string</small>
| |
| |-
| |
| | 16 || iSerialNumber || 1 || 0x00 || Index of string descriptor describing device serial number<BR /> <small>set to 0 if no string</small>
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| |-
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| | 17 || bNumConfigurations || 1 || 0x01 || Number of possible configurations
| |
| |-
| |
| |}
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| </div><br />
| |
|
| |
| ==== Configuration Descriptor ====
| |
|
| |
| {| class="wikitable"
| |
| |-
| |
| ! colspan="5" style="background-color:#C0C0C0; color:#000000;" |Configuration Descriptor
| |
| |-
| |
| ! Offset
| |
| ! Field
| |
| ! Size
| |
| ! Value
| |
| ! Description
| |
| |-
| |
| | 0 || bLength || 1 || 0x09 || Size
| |
| |-
| |
| | 1 || bDescriptorType || 1 || 0x02 || (= 2)
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| |-
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| | 2 || wTotalLength || 2 || 0x002C || Total number of bytes (44) in this descriptor and all the following descriptors (9+9+ + +)
| |
| |-
| |
| | 4 || bNumInterfaces || 1 || 0x01 || Number of interfaces supported by this configuration
| |
| |-
| |
| | 5 || bConfigurationValue || 1 || 0x01 || Value used by Set Configuration to select this configuration
| |
| |-
| |
| | 6 || iConfiguration || 1 || 0x00 || Index of string descriptor describing configuration - set to 0 if no string
| |
| |-
| |
| | 7 || bmAttributes || 1 || 0x80 || Powered by the bus (10000000)
| |
| <small>
| |
| specify power parameters for the configuration :
| |
| <small>
| |
| {| cellpadding="4" style="border-collapse: collapse; text-align: center;"
| |
| |-
| |
| | colspan="6" |<code>''8-digit bit binary''</code>
| |
| |-
| |
| |style="border: 1px solid; border-left: hidden;" | …
| |
| |style="border: 1px solid;" | 7|6|5|4|3|2|1|0
| |
| |style="border: 1px solid; border-right: hidden;" | …
| |
| |}
| |
| </small>
| |
| *D0 - D4: Reserved.
| |
| *D5: The configuration supports remote wakeup.
| |
| *D6: The configuration is self-powered and does not use power from the bus.
| |
| *D7: The configuration is powered by the bus.
| |
| </small>
| |
| |-
| |
| | 8 || bMaxPower || 1 || 0x32 || Maximum current: 100mA drawn by device in this configuration.<BR /><small>In units of 2mA. So 0x32 (50) means 100 mA</small>
| |
| |-
| |
| ! colspan="5" style="background-color:#C0C0C0; color:#000000;" |Interface Descriptor
| |
| |-
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| | 0 || bLength || 1 || 0x09 || Size
| |
| |-
| |
| | 1 || bDescriptorType || 1 || 0x04 || (= 4)
| |
| |-
| |
| | 2 || bInterfaceNumber || 1 || 0x00 || Number identifying this interface.
| |
| <small>Zero-based value</small>
| |
| |-
| |
| | 3 || bAlternateSetting || 1 || 0x00 || The first (and default) value used to select alternative setting is always 0
| |
| <small>
| |
| (An interface can have more than one variant, and these variants can be switched between, while other interfaces are still in operation)
| |
| </small>
| |
| |-
| |
| | 4 || bNumEndpoints || 1 || 0x02 || Number of Endpoints used for this interface
| |
| |-
| |
| | 5 || bInterfaceClass || 1 || 0xFF || Class code assigned by USB-IF
| |
| <small>
| |
| *00h is a reserved value
| |
| *FFh means vendor-defined class
| |
| *Any other value must be a class code
| |
| </small>
| |
| |-
| |
| | 6 || bInterfaceSubClass || 1 || 0x00 || SubClass Code assigned by USB-IF
| |
| |-
| |
| | 7 || bInterfaceProtocol || 1 || 0x00 || Protocol Code assigned by USB-IF
| |
| |-
| |
| | 8 || iInterface || 1 || 0x00 || Index of string descriptor describing interface - set to 0 if no string
| |
| |-
| |
| ! colspan="5" style="background-color:#C0C0C0; color:#000000;" |Endpoint (OUT) Descriptor
| |
| |-
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| | 0 || bLength || 1 || 0x0- || Size
| |
| |-
| |
| | 1 || bDescriptorType || 1 || 0x05 || (= 5)
| |
| |-
| |
| | 2 || bEndpointAddress || 1 || 0x01 || OUT<--(0 000 0001)-->1
| |
| <small>
| |
| The address of this endpoint within the device:
| |
| *D3-D0: Endpoint number
| |
| *D6-D4: Reserved. set to Zero
| |
| *D7: Direction: 0 = OUT, 1 = IN (Ignored for Control Endpoints)
| |
| </small>
| |
| |-
| |
| | 3 || bmAttributes || 1 || 0x02 || Bulk (00000010)
| |
| <small>
| |
| (D1:0) [http://www.inno-logic.com/resources/21.php#4 Transfer Type:]
| |
| *00 = Control
| |
| *01 = Isochronous
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| *10 = Bulk
| |
| *11 = Interrupt
| |
|
| |
| The following only apply to isochronous endpoints. Else set to 0.
| |
|
| |
| (D3:2) Synchronisation Type (ISO mode):
| |
| *00 = No Synchronisation
| |
| *01 = Asynchronous
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| *10 = Adaptive
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| *11 = Synchronous
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|
| |
| (D5:4) Usage Type (ISO mode):
| |
| *00 = Data endpoint
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| *01 = Feedback endpoint
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| *10 = Implicit feedback Data endpoint
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| *11 = Reserved
| |
|
| |
| (D7:6) Reserved
| |
| Set to 0
| |
| </small>
| |
| |-
| |
| | 4 || wMaxPacketSize || 2 || 0x0400 || (1024)
| |
| |-
| |
| | 6 || bInterval || 1|| 0x00 || - (unit depends on device speed)
| |
| <small>
| |
| Interval for polling endpoint for data transfers. Expressed in frames (ms) for low/full speed or microframes (125{{micro}}s) for high speed<BR />
| |
| (ignored for Bulk & Control Endpoints. Isochronous must equal 1 and field may range from 1 to 255 for interrupt endpoints)
| |
| |-
| |
| | - || bMaxBurst || 1 || 0x0F || MaxBurst (15)
| |
| <small>
| |
| The number of packets the endpoint can send or receive as part of a burst (range 1 - 16). See transfer Type.
| |
| </small>
| |
| |-
| |
| ! colspan="5" style="background-color:#C0C0C0; color:#000000;" |Endpoint (IN) Descriptor
| |
| |-
| |
| | 0 || bLength || 1 || 0x0- || Size
| |
| |-
| |
| | 1 || bDescriptorType || 1 || 0x05 || ( =5)
| |
| |-
| |
| | 2 || bEndpointAddress || 1 || 0x82 || IN<--(1 000 0010)-->2
| |
| |-
| |
| | 3 || bmAttributes || 1 || 0x02 || Bulk
| |
| |-
| |
| | 4 || wMaxPacketSize || 2 || 0x0400 || (1024)
| |
| |-
| |
| | 6 || bInterval || 1 || 0x00 || 0
| |
| |-
| |
| | - || bMaxBurst || 1 || 0x0F || MaxBurst (15)
| |
| |-
| |
| ! colspan="5" style="background-color:#C0C0C0; color:#000000;" |Binary Object Store Descriptor
| |
| |-
| |
| | 0 || bLength || 1 || 0x05 || Size (05)
| |
| |-
| |
| | 1 || bDescriptorType || 1 || 0x0F || (= 15)
| |
| |-
| |
| | 2 || wTotalLength || 1 || 0x16 || (22) (5+7+10)
| |
| |-
| |
| | 3 || bNumDeviceCaps || 1 || 0x02 || (2)
| |
| <small>
| |
| must be at least 2 for SuperSpeed devices and equal to 3 for USB 3.0 hubs.
| |
| </small>
| |
| |-
| |
| | - || colspan="4" style="background-color:#F0B0BF; color:#000000; text-align:center;"|USB 2.0 Extension Device Capability:
| |
| |-
| |
| | || bLength || 1 || 0x07 || (7) Size
| |
| |-
| |
| | || bDescriptorType || 1 || 0x10 || ( =16)
| |
| |-
| |
| | || bDevCapabilityType || 1 || 0x02 || (2)
| |
| <small>
| |
| *02 (USB 2.0 EXTENSION) or 03 (SUPERSPEED_USB) or 04 (CONTAINER_ID)
| |
| </small>
| |
| |-
| |
| | || bmAttributes || 4 || 0x00000002 || (00000000 00000000 00000000 00000010) Link Power Management supported
| |
| <small>
| |
| See [http://www.usb.org/developers/docs/usb20_docs/usb_20_070113.zip USB2-LPM-Errata-final.pdf p3]
| |
| *D0 Reserved. Must be set to zero
| |
| *D1 A value of one in this bit location indicates that this device supports the Link Power Management (LPM) protocol
| |
| *D2 BESL & Alternate HIRD definitions supported. The LPM bit must be set to a one when this bit is a one
| |
| *D3 Recommended Baseline BESL valid
| |
| *D4 Recommended Deep BESL valid
| |
| *D11:8 Recommended Baseline BESL value. Field shall be ignored by system software if bit [3] is a zero.
| |
| *D15:12 Recommended Deep BESL value. Field shall be ignored by system software if bit is a zero.
| |
| *D31:16 Reserved. Must be set to zero.
| |
| </small>
| |
| |-
| |
| | - || colspan="4" style="background-color:#F0B0BF; color:#000000; text-align:center;"|SuperSpeed USB Device Capability:
| |
| |-
| |
| | || bLength || 1 || 0x0A || (10) Size
| |
| |-
| |
| | || bDescriptorType || 1 || 0x10 || (= 16)
| |
| |-
| |
| | || bDevCapabilityType || 1 || 0x03 || (3)
| |
| |-
| |
| | || bmAttributes || 1 || 0x00 || (00000000)
| |
| <small>
| |
| *D1 is 1 if it is a LTM capable device
| |
| </small>
| |
| |-
| |
| | || wSpeedsSupported || || 0x000e ||
| |
| <small>
| |
| *Device can operate at Full Speed (12Mbps)
| |
| *Device can operate at High Speed (480Mbps)
| |
| *Device can operate at SuperSpeed (5Gbps)
| |
| </small>
| |
| |-
| |
| | || bFunctionalitySupport || || ||
| |
| <small>
| |
| Lowest fully-functional device speed is Full Speed 12Mbps)
| |
| </small>
| |
| |-
| |
| | || bU1DevExitLat || || || 10{{micro}}
| |
| |-
| |
| | || bU2DevExitLat || || || 32{{micro}}s
| |
| |-
| |
| | || Device Status || || 0x0000 ||
| |
| |-
| |
| |}
| |
|
| |
|
| == Project == | | == Project == |
