1 – Trace
This examples show a request block that has been reused. The next trace entry to be written is marked by "Index -->" SDA> USB SHOW REQUEST TRACE 896E9CE0 Structure type 00000005 REQUEST HANDLE Request tracing messages: 0: 8-SEP-2008 16:12:45.06 - usbd_alloc_request 1: 8-SEP-2008 16:12:45.06 - hub_alloc_request 2: 8-SEP-2008 16:12:45.06 - hub_port_status 3: 8-SEP-2008 16:12:45.06 - usbd_transfer 4: 8-SEP-2008 16:12:45.06 - ehci$queue_to_control_endpoint 5: 8-SEP-2008 16:12:45.06 - usbd_callback 6: 8-SEP-2008 16:12:45.06 - usbd_callback_thread 7: 8-SEP-2008 16:12:45.06 - hub_queue_entry_callback 8: 8-SEP-2008 16:12:45.06 - hub_port_change 9: 8-SEP-2008 16:12:45.06 - usbd_transfer 10: 8-SEP-2008 16:12:45.06 - ehci$queue_to_control_endpoint 11: 8-SEP-2008 16:12:45.06 - usbd_callback 12: 8-SEP-2008 16:12:45.06 - usbd_callback_thread 13: 8-SEP-2008 16:12:45.06 - hub_queue_entry_callback 14: 8-SEP-2008 16:12:45.06 - hub_port_change 15: 8-SEP-2008 16:12:45.06 - hub_request_status 16: 8-SEP-2008 16:12:45.06 - usbd_transfer 17: 8-SEP-2008 16:12:45.06 - ehci$queue_to_int_endpoint Index --> 18: 8-SEP-2008 16:12:44.81 - hub_free_request 19: 8-SEP-2008 16:12:44.81 - usbd_free_request 20: 8-SEP-2008 16:12:44.41 - ehci$queue_to_control_endpoint 21: 8-SEP-2008 16:12:44.41 - ehci$emulate_root_hub 22: 8-SEP-2008 16:12:44.41 - ehci$get_port_status 23: 8-SEP-2008 16:12:44.41 - usbd_callback 24: 8-SEP-2008 16:12:44.41 - usbd_callback_thread 25: 8-SEP-2008 16:12:44.41 - hub_queue_entry_callback 26: 8-SEP-2008 16:12:44.41 - hub_port_change 27: 8-SEP-2008 16:12:44.41 - hub_request_status 28: 8-SEP-2008 16:12:44.41 - usbd_transfer 29: 8-SEP-2008 16:12:44.41 - ehci$queue_to_int_endpoint 30: 8-SEP-2008 16:12:44.41 - ehci$q_to_root_hub_int_endpoint 31: 8-SEP-2008 16:12:44.41 - ehci$emulate_root_hub_interrupt 32: 8-SEP-2008 16:12:44.42 - ehci$emulate_root_hub_interrupt 33: 8-SEP-2008 16:12:44.42 - ehci$emulate_root_hub_interrupt 34: 8-SEP-2008 16:12:44.42 - usbd_callback 35: 8-SEP-2008 16:12:44.42 - usbd_callback_thread 36: 8-SEP-2008 16:12:44.42 - hub_queue_entry_callback 37: 8-SEP-2008 16:12:44.42 - hub_status_change 38: 8-SEP-2008 16:12:44.42 - hub_free_request 39: 8-SEP-2008 16:12:44.42 - usbd_free_request SDA>
2 – Data Structure
SDA> USB SHOW REQUEST 896E9CE0 Structure type 00000005 REQUEST HANDLE Chained request pointer 00000000 Pipe address 896cd890 Private handle ffffffff8968a4d0 Retry count 00000000 Saved Buffer length 00000001 Buffer address 896cdfd0 Buffer system physical address 45511fd0 Buffer length 00000000 Maximum delay 00000000 ------ Set up device request ----- Request type 000000a3 Unknown value Request type 00000000 Get status Value 00000000 Endponit stall Index 00000003 Length 00000004 ------ End device request ----- Device request physical address 45501d0c Flags 00000002 Status 07719923 SDA>