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Thu, 23 Jun 2022 13:39:35 +0000 Received: from MW4PR11MB5800.namprd11.prod.outlook.com ([fe80::f57e:d03d:b339:c30c]) by MW4PR11MB5800.namprd11.prod.outlook.com ([fe80::f57e:d03d:b339:c30c%3]) with mapi id 15.20.5373.015; Thu, 23 Jun 2022 13:39:35 +0000 From: "Kolacinski, Karol" To: Jakub Kicinski CC: "davem@davemloft.net" , "pabeni@redhat.com" , "edumazet@google.com" , "netdev@vger.kernel.org" , "richardcochran@gmail.com" , "G, GurucharanX" , "Nguyen, Anthony L" Subject: Re: [PATCH net-next 3/3] ice: add write functionality for GNSS TTY Thread-Topic: [PATCH net-next 3/3] ice: add write functionality for GNSS TTY Thread-Index: AQHYajQ/+5Nk/nCT4Euu3FZzl2q0S60lpXKAgAcRTA2AABJcAIAwbhiy Date: Thu, 23 Jun 2022 13:39:35 +0000 Message-ID: References: <20220517211935.1949447-1-anthony.l.nguyen@intel.com> <20220517211935.1949447-4-anthony.l.nguyen@intel.com> <20220518215723.28383e8e@kernel.org> <20220523105850.606a75c1@kernel.org> In-Reply-To: <20220523105850.606a75c1@kernel.org> Accept-Language: pl-PL, en-US Content-Language: pl-PL X-MS-Has-Attach: X-MS-TNEF-Correlator: suggested_attachment_session_id: e7abd041-a6db-5089-0dae-0db92a5e9dae authentication-results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=intel.com; 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charset="iso-8859-2" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: MW4PR11MB5800.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 247b19c0-95b1-45c2-01c6-08da551dcfd9 X-MS-Exchange-CrossTenant-originalarrivaltime: 23 Jun 2022 13:39:35.5708 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: azLKO8tOCp83HYwm480gkENFtgRltYgDvDs3WFYWeGDpfliGsx01HXCW9uAB8QHdfhrgcl9jmgLaq9i9/dbqYnZP8C3uFBxKvPwWN82kydU= X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN7PR11MB2626 X-OriginatorOrg: intel.com Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Mon, 23 May 2022 19:58 +0000 Jakub Kicinski wrote:=0A= > I meant discovered at the uAPI level. Imagine I plug in a shiny E810T=0A= > with a GNSS receiver into a box, the PRSNT_N bit is set and the driver=0A= > registered the ttys. How do I find the GNSS under /dev ?=0A= =0A= If the module is physically present, driver creates 2 TTYs for each support= ed=0A= device in /dev, ttyGNSS_:_0 and _1. First one (_0) is RW = and=0A= the second one is RO.=0A= The protocol of write commands is dependent on the GNSS module as the drive= r=0A= writes raw bytes from the TTY to the GNSS i2c.=0A= =0A= I added this to Documentation/.=0A= =0A= Thanks,=0A= Karol=