Input device and control system of in-vehicle device

A control system of an in-vehicle device including:

• an input device comprising:
• an operation body of which an outer peripheral surface is used as an operation surface, the operation body being twist-operated in a cross-section circumferential direction thereof;
• first sensor members, each configured to detect operation position information on the operation surface by detecting an electric change;
• second sensor members, each configured to detect twist information by detecting an electric change when the twist operation is performed;
• and
• a controller to output the operation position information and the twist information in order to control activation of an electronic device;
• and
• wherein the operation body comprises a grasp portion which configures a steering device of a vehicle during steering;
• wherein the control system is configured to:
• select the in-vehicle device, a function of the in-vehicle device, or the in-vehicle device and the function thereof based on the operation position information;
• execute a selected input operation to the in-vehicle device based on the twist information;
• and
• activate the in-vehicle device.