mipi_dsi_dcs_write — send DCS write command
| ssize_t mipi_dsi_dcs_write ( | struct mipi_dsi_device * dsi, | 
| u8 cmd, | |
| const void * data, | |
| size_t len ); | 
dsiDSI peripheral device
cmdDCS command
databuffer containing the command payload
lencommand payload length