vio_ver_t
static int vdc_init_ver_negotiation(vdc_t *vdc, vio_ver_t ver);
vdc_init_ver_negotiation(vdc_t *vdc, vio_ver_t ver)
static const vio_ver_t vdc_version[] = {{1, 1}};
vio_ver_t version; /* ver negotiated with client */
static const vio_ver_t vds_version[] = {{1, 1}};
vio_ver_is_supported(vio_ver_t ver, uint16_t major, uint16_t minor)
vio_ver_t ver; /* version number agreed with server */
boolean_t vio_ver_is_supported(vio_ver_t ver, uint16_t maj, uint16_t min);