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Dmitry Isaenko 2025-01-23 02:23:35 +03:00
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SPECIFICATION.md
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@ -1,9 +1,9 @@
# Specification of the 048d:5711 Integrated Technology Express, Inc. GIGABYTE Device # Uh, umm... well... let's call it specification of the 048d:5711 Integrated Technology Express, Inc. GIGABYTE Device
#### Structure description #### Document structure
**USB control transfer used** **USB control transfer used**
(and usbhid 🤓) (and USB HID a bit 🤓)
Endpoint: **0x00**, Direction: **OUT** Endpoint: **0x00**, Direction: **OUT**
* bmRequestType: **0x21** * bmRequestType: **0x21**
@ -35,11 +35,11 @@ int returned_value = libusb_control_transfer(dev_handle, 0xa1, 1, 0x03cc, 1, buf
---- ----
Interaction could be split on three phases: Application startup, command transmission, ending Interaction could be split on three phases: Application initial flow, command(s) transmission, termination
### Application initial flow: ### Application initial flow:
``` ```
cc60 ↓↓↓↓↓↓↓↓ version in hex cc60 ↓↓↓↓↓↓↓↓ version in hex. I guess. At least looks like this.
INPUT << cc01000100001802000000034954353731312d47494741425954452056302e302e32342e320000000000000002000100020001000001020000c01157 INPUT << cc01000100001802000000034954353731312d47494741425954452056302e302e32342e320000000000000002000100020001000001020000c01157
cc60 ↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑ ascii text: 'IT5711-GIGABYTE V0.0.24.2' cc60 ↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑ ascii text: 'IT5711-GIGABYTE V0.0.24.2'
INPUT << cc01000100001802000000034954353731312d47494741425954452056302e302e32342e320000000000000002000100020001000001020000c01157 INPUT << cc01000100001802000000034954353731312d47494741425954452056302e302e32342e320000000000000002000100020001000001020000c01157
@ -59,15 +59,13 @@ cc34
cc38 cc38
``` ```
### Commands ### Commands / directives to apply changes
NOTE: Переходы между изменениями цвета в sync режимах идут без следующих пред-последовательностей. Но переход от отдельных к синхронизированному - через стандартные ппоследовательности
There are two types of commands: There are two types of commands:
* syncronized - applies same setting to everything * synchronized - applies same setting to everything
* separate - adjusts settings separately * separate - adjusts settings separately
***Commands sent before actual directive. Structure is always the same*** *** Prefix-directives: commands sent before actual sequence of the command. Structure is always the same***
``` ```
cc20 cc20
cc21 cc21
@ -82,6 +80,16 @@ cc91
cc92 cc92
cc28ff07 cc28ff07
``` ```
After application initial flow sent and till termination (see below) any command could be applied randomly. One after one or in completely random sequence.
Let's summarize: full command sequence is prefix-directives plus actual command sequence (as explained in sections below).
~~Butt~~But actually 'prefix-directives' always sent:
1. Before switching between 'separate' commands
2. Before switching from 'separate' command already applied to 'synchronized' command
3. Before switching from 'synchronized' command to 'separate'
4. Before initial application of the 'synchronized' command
Therefore no need to send 'prefix-directives' once switching between two 'synchronized' commands. Is it safe send it either way? Could be.
--- ---
#### Turn off backlight - Applies to everything! #### Turn off backlight - Applies to everything!
@ -96,6 +104,7 @@ EXAMPLE:
#### Turn off backlight (user selects: channel) #### Turn off backlight (user selects: channel)
``` ```
↓↓↓↓↓↓-----------------------|
cc2204000000000000000001ff ← 1 |‾‾|‾‾‾‾‾‾‾‾‾‾‾1| cc2204000000000000000001ff ← 1 |‾‾|‾‾‾‾‾‾‾‾‾‾‾1|
cc2410000000000000000001ff ← 2 | 6| |‾‾| |||| | cc2410000000000000000001ff ← 2 | 6| |‾‾| |||| |
cc2520000000000000000001ff ← 3 | | ‾‾ |||| | cc2520000000000000000001ff ← 3 | | ‾‾ |||| |
@ -249,7 +258,9 @@ EXAMPLE:
--- ---
### Termination ### Termination
[repeat last setup request for some reason] [repeat last sequence for some reason. or don't. who knows]
``` ```
cc4701 cc4701
``` ```
This work is licensed under a [Creative Commons Attribution 4.0 International License](https://creativecommons.org/licenses/by/4.0/Attribution)