USB is a HOST/DEVICE protocol, as per the specification and all documentation. Fix up terms that are not applicable to make things match up with the terms used through the rest of the USB stack.
Unified · Split
| @@ -422,7 +422,7 @@ struct usb_devmap { · 421 unmodified lines | |||
| 422 | * Allocated per bus (tree of devices) we have: | 422 | * Allocated per bus (tree of devices) we have: |
| 423 | */ | 423 | */ |
| 424 | struct usb_bus { | 424 | struct usb_bus { |
| 425 | struct device *controller; /* host/master side hardware */ | 425 | struct device *controller; /* host side hardware */ |
| 426 | struct device *sysdev; /* as seen from firmware or bus */ | 426 | struct device *sysdev; /* as seen from firmware or bus */ |
| 427 | int busnum; /* Bus number (in order of reg) */ | 427 | int busnum; /* Bus number (in order of reg) */ |
| 428 | const char *bus_name; /* stable id (PCI slot_name etc) */ | 428 | const char *bus_name; /* stable id (PCI slot_name etc) */ |
| @@ -6,13 +6,13 @@ · 5 unmodified lines | |||
| 6 | * Wireless USB 1.0 (spread around). Linux has several APIs in C that | 6 | * Wireless USB 1.0 (spread around). Linux has several APIs in C that |
| 7 | * need these: | 7 | * need these: |
| 8 | * | 8 | * |
| 9 | * - the master/host side Linux-USB kernel driver API; | 9 | * - the host side Linux-USB kernel driver API; |
| 10 | * - the "usbfs" user space API; and | 10 | * - the "usbfs" user space API; and |
| 11 | * - the Linux "gadget" slave/device/peripheral side driver API. | 11 | * - the Linux "gadget" device/peripheral side driver API. |
| 12 | * | 12 | * |
| 13 | * USB 2.0 adds an additional "On The Go" (OTG) mode, which lets systems | 13 | * USB 2.0 adds an additional "On The Go" (OTG) mode, which lets systems |
| 14 | * act either as a USB master/host or as a USB slave/device. That means | 14 | * act either as a USB host or as a USB device. That means the host and |
| 15 | * the master and slave side APIs benefit from working well together. | 15 | * device side APIs benefit from working well together. |
| 16 | * | 16 | * |
| 17 | * There's also "Wireless USB", using low power short range radios for | 17 | * There's also "Wireless USB", using low power short range radios for |
| 18 | * peripheral interconnection but otherwise building on the USB framework. | 18 | * peripheral interconnection but otherwise building on the USB framework. |
| @@ -4,7 +4,8 @@ · 3 unmodified lines | |||
| 4 | * | 4 | * |
| 5 | * We call the USB code inside a Linux-based peripheral device a "gadget" | 5 | * We call the USB code inside a Linux-based peripheral device a "gadget" |
| 6 | * driver, except for the hardware-specific bus glue. One USB host can | 6 | * driver, except for the hardware-specific bus glue. One USB host can |
| 7 | * master many USB gadgets, but the gadgets are only slaved to one host. | 7 | * talk to many USB gadgets, but the gadgets are only able to communicate |
| 8 | * to one host. | ||
| 8 | * | 9 | * |
| 9 | * | 10 | * |
| 10 | * (C) Copyright 2002-2004 by David Brownell | 11 | * (C) Copyright 2002-2004 by David Brownell |
| @@ -328,7 +329,7 @@ struct usb_gadget_ops { · 317 unmodified lines | |||
| 328 | }; | 329 | }; |
| 329 | 330 | ||
| 330 | /** | 331 | /** |
| 331 | * struct usb_gadget - represents a usb slave device | 332 | * struct usb_gadget - represents a usb device |
| 332 | * @work: (internal use) Workqueue to be used for sysfs_notify() | 333 | * @work: (internal use) Workqueue to be used for sysfs_notify() |
| 333 | * @udc: struct usb_udc pointer for this gadget | 334 | * @udc: struct usb_udc pointer for this gadget |
| 334 | * @ops: Function pointers used to access hardware-specific operations. | 335 | * @ops: Function pointers used to access hardware-specific operations. |
| @@ -602,7 +603,7 @@ static inline int usb_gadget_activate(struct usb_gadget *gadget) · 267 unmodified lines | |||
| 602 | /*-------------------------------------------------------------------------*/ | 603 | /*-------------------------------------------------------------------------*/ |
| 603 | 604 | ||
| 604 | /** | 605 | /** |
| 605 | * struct usb_gadget_driver - driver for usb 'slave' devices | 606 | * struct usb_gadget_driver - driver for usb gadget devices |
| 606 | * @function: String describing the gadget's function | 607 | * @function: String describing the gadget's function |
| 607 | * @max_speed: Highest speed the driver handles. | 608 | * @max_speed: Highest speed the driver handles. |
| 608 | * @setup: Invoked for ep0 control requests that aren't handled by | 609 | * @setup: Invoked for ep0 control requests that aren't handled by |