mirror/btstack
1
0
Fork 0
mirror of https://github.com/bluekitchen/btstack.git synced 2025-02-25 06:40:10 +00:00
Code Issues Packages Projects Releases Wiki Activity

btstack_hid_parser: add HID Descriptor Iterator

Browse Source
This commit is contained in:
Matthias Ringwald 2024-08-12 17:46:38 +02:00
parent 0a4fc5fb4c
commit 3cc55c4ae3
1 changed files with 2 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
src/btstack_hid_parser.c
View File

@ -455,7 +455,7 @@ void btstack_hid_descriptor_iterator_init(btstack_hid_descriptor_iterator_t * it
}
bool btstack_hid_descriptor_iterator_has_more(btstack_hid_descriptor_iterator_t * iterator){
if ((iterator->item_ready == false) && (iterator->descriptor_len > 0)){
if ((iterator->item_ready == false) && (iterator->descriptor_len > iterator->descriptor_pos)){
uint16_t item_len = iterator->descriptor_len - iterator->descriptor_pos;
const uint8_t *item_data = &iterator->descriptor[iterator->descriptor_pos];
bool ok = btstack_hid_parse_descriptor_item(&iterator->descriptor_item, item_data, item_len);
@ -469,11 +469,7 @@ bool btstack_hid_descriptor_iterator_has_more(btstack_hid_descriptor_iterator_t
}
const hid_descriptor_item_t * const btstack_hid_descriptor_iterator_get_item(btstack_hid_descriptor_iterator_t * iterator){
btstack_assert(iterator->descriptor_len >= iterator->descriptor_item.item_size);
iterator->descriptor_len -= iterator->descriptor_item.item_size;
iterator->descriptor += iterator->descriptor_item.item_size;
iterator->descriptor_pos += iterator->descriptor_item.item_size;
iterator->item_ready = false;
return &iterator->descriptor_item;
}