| 174 | } |
| 175 | |
| 176 | extern "C" uint16_t const *tud_descriptor_string_cb(uint8_t index, uint16_t langid) { |
| 177 | (void)langid; |
| 178 | static uint16_t desc[32]; |
| 179 | uint8_t chrCount = 0; |
| 180 | |
| 181 | if (index == 0) { |
| 182 | desc[1] = 0x0409; |
| 183 | chrCount = 1; |
| 184 | } else { |
| 185 | if (index >= (sizeof(kUsbStrings) / sizeof(kUsbStrings[0]))) return nullptr; |
| 186 | const char *str = kUsbStrings[index]; |
| 187 | chrCount = static_cast<uint8_t>(std::min<size_t>(std::strlen(str), 31)); |
| 188 | for (uint8_t i = 0; i < chrCount; ++i) desc[1 + i] = str[i]; |
| 189 | } |
| 190 | |
| 191 | desc[0] = static_cast<uint16_t>((TUSB_DESC_STRING << 8) | (2 * chrCount + 2)); |
| 192 | return desc; |
| 193 | } |
| 194 | |
| 195 | extern "C" uint8_t tud_msc_get_maxlun_cb(void) { return 0; } |
| 196 |
nothing calls this directly
no outgoing calls
no test coverage detected