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Fix HID comments 

Fix typo and reference the latest version of "HID Usage Tables"
specifications.

PR #5270 <https://github.com/Genymobile/scrcpy/pull/5270>
This commit is contained in:
Romain Vimont 2024-09-06 23:08:08 +02:00
parent 1f5be743b4
commit de8455400c
2 changed files with 12 additions and 9 deletions
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7
app/src/hid/hid_keyboard.c
View File

@ -31,13 +31,16 @@
* For HID, only report descriptor is needed.
*
* The specification is available here:
* <https://www.usb.org/sites/default/files/hid1_11.pdf>
* <https://www.usb.org/document-library/device-class-definition-hid-111>
*
* In particular, read:
* - 6.2.2 Report Descriptor
* - §6.2.2 Report Descriptor
* - Appendix B.1 Protocol 1 (Keyboard)
* - Appendix C: Keyboard Implementation
*
* The HID Usage Tables is also useful:
* <https://www.usb.org/document-library/hid-usage-tables-15>
*
* Normally a basic HID keyboard uses 8 bytes:
* Modifier Reserved Key Key Key Key Key Key
*

10
app/src/hid/hid_mouse.c
View File

@ -6,13 +6,13 @@
/**
* Mouse descriptor from the specification:
* <https://www.usb.org/sites/default/files/hid1_11.pdf>
* <https://www.usb.org/document-library/device-class-definition-hid-111>
*
* Appendix E (p71): §E.10 Report Descriptor (Mouse)
*
* The usage tags (like Wheel) are listed in "HID Usage Tables":
* <https://www.usb.org/sites/default/files/documents/hut1_12v2.pdf>
* §4 Generic Desktop Page (0x01) (p26)
* <https://www.usb.org/document-library/hid-usage-tables-15>
* §4 Generic Desktop Page (0x01) (p32)
*/
static const uint8_t SC_HID_MOUSE_REPORT_DESC[] = {
// Usage Page (Generic Desktop)
@ -62,9 +62,9 @@ static const uint8_t SC_HID_MOUSE_REPORT_DESC[] = {
0x09, 0x31,
// Usage (Wheel)
0x09, 0x38,
// Local Minimum (-127)
// Logical Minimum (-127)
0x15, 0x81,
// Local Maximum (127)
// Logical Maximum (127)
0x25, 0x7F,
// Report Size (8)
0x75, 0x08,