USB services: Difference between revisions

Line 641:

| 0x4 || 0x2 || idProduct

|-

| 0x6 || ~~0x7~~ || ~~Unused?~~

| 0x6 || 0x2 || bcdDevice_Min

|-

| 0x8 || 0x2 || bcdDevice_Max

|-

| 0xA || 0x1 || bDeviceClass

|-

| 0xB || 0x1 || bDeviceSubClass

|-

| 0xC || 0x1 || bDeviceProtocol

|-

| 0xD || 0x1 || bInterfaceClass

Line 654:

Line 662:

This is used to filter [[#UsbHsInterface]], the query commands will only return the interface when these checks pass. This is also used for events with [[#CreateInterfaceAvailableEvent]]. When a bit in Flags is set, the associated descriptor field and the field in this struct are compared, on mismatch the interface will be filtered out. Passing Flags=0 is equivalent to disabling filtering since none of these checks will run.

Flags bits 0..1 use usb_device_descriptor, while 7..9 use usb_interface_descriptor.

Flags bits 0..6 use usb_device_descriptor, while 7..9 use usb_interface_descriptor. Support for bits 2..6 and the associated fields was added with {unknown sysver}.

Flags bits:

* 0: idVendor

* 1: idProduct

* 2: bcdDevice (Descriptor value must be >= struct bcdDevice_Min)

* 3: bcdDevice (Descriptor value must be <= struct bcdDevice_Max)

* 4: bDeviceClass

* 5: bDeviceSubClass

* 6: bDeviceProtocol

* 7: bInterfaceClass

* 8: bInterfaceSubClass

@@ Line 641: / Line 641: @@
 | 0x4 || 0x2 || idProduct
 |-
-| 0x6 || 0x7 || Unused?
+| 0x6 || 0x2 || bcdDevice_Min
+|-
+| 0x8 || 0x2 || bcdDevice_Max
+|-
+| 0xA || 0x1 || bDeviceClass
+|-
+| 0xB || 0x1 || bDeviceSubClass
+|-
+| 0xC || 0x1 || bDeviceProtocol
 |-
 | 0xD || 0x1 || bInterfaceClass
@@ Line 654: / Line 662: @@
 This is used to filter [[#UsbHsInterface]], the query commands will only return the interface when these checks pass. This is also used for events with [[#CreateInterfaceAvailableEvent]]. When a bit in Flags is set, the associated descriptor field and the field in this struct are compared, on mismatch the interface will be filtered out. Passing Flags=0 is equivalent to disabling filtering since none of these checks will run.
-Flags bits 0..1 use usb_device_descriptor, while 7..9 use usb_interface_descriptor.
+Flags bits 0..6 use usb_device_descriptor, while 7..9 use usb_interface_descriptor. Support for bits 2..6 and the associated fields was added with {unknown sysver}.
 Flags bits:
 * 0: idVendor
 * 1: idProduct
+* 2: bcdDevice (Descriptor value must be >= struct bcdDevice_Min)
+* 3: bcdDevice (Descriptor value must be <= struct bcdDevice_Max)
+* 4: bDeviceClass
+* 5: bDeviceSubClass
+* 6: bDeviceProtocol
 * 7: bInterfaceClass
 * 8: bInterfaceSubClass