B&B Electronics Parallel Printer Card PIOC Uživatelský manuál stáhnout pdf (Strana 31)

GHI Electronics,LLC USBwiz User Manual

1. USBwiz Functions

Find an Endpoint that belongs to the previously found Interface

FE 03 02

transfer= interrupt, direction= input

Output: found Endpoint descriptor size + the data

Open Pipe to the selected endpoint and assign handle 6 to it,

OP 6

It is also possible to search for any kind of descriptors in the loaded internal buffer using

the FD command,

Example: Find the 1st HID descriptor in a previously loaded configuration descriptor,

FD 21 00

Output:

!00

$09

09 21 10 01 00 01 22 34 00

!00

Stage 3:

Read 4 bytes from Pipe 6

RP 6>04

Close Pipe

CP 6

Also, using the Setup command, it is possible to send setup requests on the default

control pipe using the SS command,

Example: Get Device descriptor

SS device_handle>80 06 0100 0000 0012

Output:

0x12 0x01 0x10 0x01 0x00 0x00 0x00 0x08 0x2A 0x06 0x00 0x00 0x00

0x00 0x00

0x00 0x00 0x01

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B&B Electronics Parallel Printer Card PIOC Uživatelský manuál Strana 31