CMIS_APP_DESC_SIZE
uint8_t app_desc[CMIS_APP_DESC_SIZE];
app_off = CMIS_APP_DESC_START + (appsel - 1) * CMIS_APP_DESC_SIZE;
read_i2c(ii, CMIS_BASE, app_off, CMIS_APP_DESC_SIZE, app_desc);
uint8_t app_desc[CMIS_APP_DESC_SIZE];
CMIS_APP_DESC_SIZE, app_desc);