odoo/addons/portal_crm/security/ir.model.access.csv

1	id	name	model_id:id	group_id:id	perm_read	perm_write	perm_create	perm_unlink
2	access_calendar_event_portal	calendar.event.portal	calendar.model_calendar_event	portal.group_portal	1	1	0	0
3	access_calendar_event_type_portal	calendar.event.type.portal	calendar.model_calendar_event_type	portal.group_portal	1	0	0	0