[Info-vax] Processes hang on USB-access

[Volker Halle]

Simon,

there are no SDA> USB SHOW EHCI commands.

The only command, which seems to provide any references to TDs is:

SDA> usb show ohci ucb
Open Host Controller UCB extensions
Direct DMA window base address      0000000000000000
I/O handle                          ffffffff84bdf900
Pointer to USB structure            84bdb710
Pointer to saved device registers   84be7480
Pointer to HCCA                     84b74700
HCCA PCI buss address               45320700
Controler revision                  00000010
Root hub address                    00000001
Number of ports                     00000003
Status change request queue
                           Flink    84bf6290
                           Blink    84bf6290
Connected end points queue
                           Flink    84bb4698
                           Blink    84bb4698
Free Endpoints queue
                           Flink    84bee8c0
                           Blink    84bee7c0
Count of free ED                    0000005d
Free transfer descriptor queue
                           Flink    84becd40
                           Blink    84bede40
Count of free TD                    0000005c
Used transfer descriptor queue
                           Flink    84bec00c
                           Blink    84becbcc
Count of used TD                    00000023
Stalled endpoint descriptor queue                    <<< ?
                           Flink    84bb46c4
                           Blink    84bb46c4
Running endpoint descriptor queue
                           Flink    84bb46cc
                           Blink    84bb46cc
Paused endpoint descriptor queue
                           Flink    84bb46d4
                           Blink    84bb46d4
ED lists will not be displayed
Frame Hight part                    bb9d8000
Available Bandwidth                 00000064
Used Bandwidth                      00000000
SO count                            00000000
SO stall Frame                      00000000
SO Limit Frame                      00000000
SO Limit Hit                        00000000
SO Stall Hit                        00000000
UCM message mailbox                 00000000
Vendor ID                           00001033
Device ID                           00000035