Accessing a Cloudflare R2 bucket

Someone knows the parameters to access a R2 bucket in addition to the usual ones that work fine for other S3 compatible services (like Minio, for example):

access_key
access_secret
fs.s3a.endpoint
fs.s3a.path.style.access

because with the parameters above only Dremio is not able to connect to Cloudflare R2 bucket
Thanks.

Ennio