sino dapat kasuhan bus driver or bus company?

Hello po sa inyong lahat.Nabangga po yung kapatid ko ng big bus pauwi na sya galing nagpasada.Naka tricycle sya (head to head collision).Nahospital yung kapatid ko for 2 weeks.He is home na for recovery.SIra yung mukha at inayos yung jaw nya (nagkaroon ng jaw surgery)Nagpipilay pa (may saklay) kasi may bali yung tuhod.HIndi na inasikaso ng doctor yung tuhod kasi babalik naman daw sa dati pagdating ng panahon.Sumasakit sakit at minsan daw namamaga.BInalik nila s doctor nung namaga ng husto at drinain yung nsa loob.Ngayon nag file ng case yung parents at kapatid ko against dun s driver.ANg kaso n naka file ay reckless imprudence at saka ung damage of property.Yung tricycle ng kapatid ko wala n as in total damage.Gusto nila pabayarin yung driver sa damage ng tricycle at medical billing ng kapatid ko which is umaabot ng 400 thousand pesos.Dipo ba dapat managot yun yung bus at hindi yung driver?Nag alala lang ako kasi kung antayin ba nila yung arraignment (suppose to be jan.28 ) pero na postponed dahil wala daw judge.So naging Feb 18 nanaman daw.Baka kasi hindi n makasuhan yung bus company yung late n sila mag file ng kaso against sa bus company...Anyone can give advice?Thank you po.I appreciate it.Sabi ko hanggat maaga pa sana dapat mag file n cla ng kaso dun sa bus company rin