net/usb/plusb.c

1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * PL-2301/2302 USB host-to-host link cables
4  * Copyright (C) 2000-2005 by David Brownell
21  * Prolific PL-2301/PL-2302 driver ... http://www.prolific.com.tw/
23  * The protocol and handshaking used here should be bug-compatible
31  * seems to get wedged under load.  Prolific docs are weak, and
36  * compatibility.   Some docs suggest the difference between 2301
37  * and 2302 is only to make MS-Windows use a different driver...
39  * pl25a1 glue based on patch from Tony Gibbs.  Prolific "docs" on
45  * Bits 0-4 can be used for software handshaking; they're set from
48 #define	PL_S_EN		(1<<7)		/* (feature only) suspend enable */
49 /* reserved bit -- rx ready (6) ? */
80 		netif_dbg(dev, link, dev->net, "pl_reset --> %d\n", status);  in pl_reset()
85 	.description =	"Prolific PL-2301/PL-2302/PL-25A1/PL-27A1",
87 		/* some PL-2302 versions seem to fail usb_set_interface() */
92 /*-------------------------------------------------------------------------*/
103 	USB_DEVICE(0x067b, 0x0000),	// PL-2301
106 	USB_DEVICE(0x067b, 0x0001),	// PL-2302
112 	USB_DEVICE(0x067b, 0x25a1),     /* PL-25A1, no eeprom */
115 	USB_DEVICE(0x050d, 0x258a),     /* Belkin F5U258/F5U279 (PL-25A1) */
119 					 * Host-to-Host Cable
127 	USB_DEVICE(0x067b, 0x27a1),     /* PL-27A1, no eeprom
130 					 * Unitek Y-3501
152 MODULE_DESCRIPTION("Prolific PL-2301/2302/25A1/27A1 USB Host to Host Link Driver");