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Print speed. Don't crash if string get fails

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This commit is contained in:
Scott Shawcroft
2022-03-10 11:01:44 -08:00
parent 22f682c378
commit 37960990a5
1 changed files with 19 additions and 0 deletions
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19
examples/host/device_info/src/main.c
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@@ -90,6 +90,10 @@ static void _wait_and_convert(uint16_t *temp_buf, size_t buf_len) {
while (_get_string_result == 0xff) {
tuh_task();
}
if (_get_string_result != XFER_RESULT_SUCCESS) {
temp_buf[0] = 0;
return;
}
size_t utf16_len = ((temp_buf[0] & 0xff) - 2) / sizeof(uint16_t);
size_t utf8_len = _count_utf8_bytes(temp_buf + 1, utf16_len);
_convert_utf16le_to_utf8(temp_buf + 1, utf16_len, (uint8_t *) temp_buf, sizeof(uint16_t) * buf_len);
@@ -128,6 +132,21 @@ int main(void)
tuh_vid_pid_get(i, &vid, &pid);
printf("%d vid %04x pid %04x\r\n", i, vid, pid);
tusb_speed_t speed = tuh_speed_get(i);
switch (speed) {
case TUSB_SPEED_FULL:
printf("Full speed\r\n");
break;
case TUSB_SPEED_LOW:
printf("Low speed\r\n");
break;
case TUSB_SPEED_HIGH:
printf("High speed\r\n");
break;
default:
break;
}
_get_string_result = 0xff;
uint16_t temp_buf[127];
if (tuh_descriptor_string_serial_get(i, 0, temp_buf, TU_ARRAY_SIZE(temp_buf), _transfer_done_cb)) {