Author: hselasky
Date: Tue Nov 10 13:18:44 2020
New Revision: 367560
URL: https://svnweb.freebsd.org/changeset/base/367560
Log:
MFC r367236:
Implement the USB_GET_DEVICEINFO ioctl(2) for uhid(4).
Submitted by: pedro martelletto <pe...@ambientworks.net>
Sponsored by: Mellanox Technologies // NVIDIA Networking
Modified:
stable/12/share/man/man4/uhid.4
stable/12/sys/dev/usb/input/uhid.c
stable/12/sys/dev/usb/usb_generic.c
stable/12/sys/dev/usb/usb_generic.h
Directory Properties:
stable/12/ (props changed)
Modified: stable/12/share/man/man4/uhid.4
==============================================================================
--- stable/12/share/man/man4/uhid.4 Tue Nov 10 13:16:37 2020
(r367559)
+++ stable/12/share/man/man4/uhid.4 Tue Nov 10 13:18:44 2020
(r367560)
@@ -29,7 +29,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd July 1, 2018
+.Dd Oct 31, 2020
.Dt UHID 4
.Os
.Sh NAME
@@ -131,6 +131,11 @@ and the
.Va ugd_maxlen
fields.
This call may fail if the device does not support this feature.
+.It Dv USB_GET_DEVICEINFO Pq Vt "struct usb_device_info"
+Returns information about the device, like USB vendor ID and USB product ID.
+This call will not issue any USB transactions.
+Also refer to
+.Xr ugen 4 .
.El
.Pp
Use
Modified: stable/12/sys/dev/usb/input/uhid.c
==============================================================================
--- stable/12/sys/dev/usb/input/uhid.c Tue Nov 10 13:16:37 2020
(r367559)
+++ stable/12/sys/dev/usb/input/uhid.c Tue Nov 10 13:18:44 2020
(r367560)
@@ -70,6 +70,7 @@ __FBSDID("$FreeBSD$");
#include <dev/usb/usbdi_util.h>
#include <dev/usb/usbhid.h>
#include <dev/usb/usb_ioctl.h>
+#include <dev/usb/usb_generic.h>
#define USB_DEBUG_VAR uhid_debug
#include <dev/usb/usb_debug.h>
@@ -143,11 +144,13 @@ static usb_fifo_cmd_t uhid_stop_write;
static usb_fifo_open_t uhid_open;
static usb_fifo_close_t uhid_close;
static usb_fifo_ioctl_t uhid_ioctl;
+static usb_fifo_ioctl_t uhid_ioctl_post;
static struct usb_fifo_methods uhid_fifo_methods = {
.f_open = &uhid_open,
.f_close = &uhid_close,
.f_ioctl = &uhid_ioctl,
+ .f_ioctl_post = &uhid_ioctl_post,
.f_start_read = &uhid_start_read,
.f_stop_read = &uhid_stop_read,
.f_start_write = &uhid_start_write,
@@ -644,6 +647,24 @@ uhid_ioctl(struct usb_fifo *fifo, u_long cmd, void *ad
case USB_GET_REPORT_ID:
*(int *)addr = 0; /* XXX: we only support reportid 0? */
+ break;
+
+ default:
+ error = ENOIOCTL;
+ break;
+ }
+ return (error);
+}
+
+static int
+uhid_ioctl_post(struct usb_fifo *fifo, u_long cmd, void *addr,
+ int fflags)
+{
+ int error;
+
+ switch (cmd) {
+ case USB_GET_DEVICEINFO:
+ error = ugen_fill_deviceinfo(fifo, addr);
break;
default:
Modified: stable/12/sys/dev/usb/usb_generic.c
==============================================================================
--- stable/12/sys/dev/usb/usb_generic.c Tue Nov 10 13:16:37 2020
(r367559)
+++ stable/12/sys/dev/usb/usb_generic.c Tue Nov 10 13:18:44 2020
(r367560)
@@ -109,8 +109,6 @@ static int ugen_set_interface(struct usb_fifo *, uint8
static int ugen_get_cdesc(struct usb_fifo *, struct usb_gen_descriptor *);
static int ugen_get_sdesc(struct usb_fifo *, struct usb_gen_descriptor *);
static int ugen_get_iface_driver(struct usb_fifo *f, struct
usb_gen_descriptor *ugd);
-static int usb_gen_fill_deviceinfo(struct usb_fifo *,
- struct usb_device_info *);
static int ugen_re_enumerate(struct usb_fifo *);
static int ugen_iface_ioctl(struct usb_fifo *, u_long, void *, int);
static uint8_t ugen_fs_get_complete(struct usb_fifo *, uint8_t *);
@@ -817,7 +815,7 @@ ugen_get_iface_driver(struct usb_fifo *f, struct usb_g
}
/*------------------------------------------------------------------------*
- * usb_gen_fill_deviceinfo
+ * ugen_fill_deviceinfo
*
* This function dumps information about an USB device to the
* structure pointed to by the "di" argument.
@@ -826,8 +824,8 @@ ugen_get_iface_driver(struct usb_fifo *f, struct usb_g
* 0: Success
* Else: Failure
*------------------------------------------------------------------------*/
-static int
-usb_gen_fill_deviceinfo(struct usb_fifo *f, struct usb_device_info *di)
+int
+ugen_fill_deviceinfo(struct usb_fifo *f, struct usb_device_info *di)
{
struct usb_device *udev;
struct usb_device *hub;
@@ -2216,7 +2214,7 @@ ugen_ioctl_post(struct usb_fifo *f, u_long cmd, void *
case USB_DEVICEINFO:
case USB_GET_DEVICEINFO:
- error = usb_gen_fill_deviceinfo(f, addr);
+ error = ugen_fill_deviceinfo(f, addr);
break;
case USB_DEVICESTATS:
Modified: stable/12/sys/dev/usb/usb_generic.h
==============================================================================
--- stable/12/sys/dev/usb/usb_generic.h Tue Nov 10 13:16:37 2020
(r367559)
+++ stable/12/sys/dev/usb/usb_generic.h Tue Nov 10 13:18:44 2020
(r367560)
@@ -31,5 +31,6 @@
extern struct usb_fifo_methods usb_ugen_methods;
int ugen_do_request(struct usb_fifo *f, struct usb_ctl_request *ur);
+int ugen_fill_deviceinfo(struct usb_fifo *f, struct usb_device_info *di);
#endif /* _USB_GENERIC_H_ */
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