manufacture/mrp_production_serial_matrix/security/ir.model.access.csv

1	id	name	model_id:id	group_id:id	perm_read	perm_write	perm_create	perm_unlink
2	access_mrp_production_serial_matrix	access mrp.production.serial.matrix	model_mrp_production_serial_matrix	base.group_user	1	1	1	1
3	access_mrp_production_serial_matrix_line	access mrp.production.serial.matrix.line	model_mrp_production_serial_matrix_line	base.group_user	1	1	1	1