USB: core: additional Device Classes to debug/usb/devices (03cc8353) · Commits · 戴 / test

Several newer USB Device classes are not presently reported individually at /sys/kernel/debug/usb/devices, (reported as "unk."). This patch adds the following classes: 0fh (Personal Healthcare devices), 10h (USB Type-C combined Audio/Video devices) 11h (USB billboard), 12h (USB Type-C Bridge). As defined at [https://www.usb.org/defined-class-codes ] Corresponding classes defined in include/linux/usb/ch9.h. Signed-off-by:

Rob Gill <rrobgill@protonmail.com> Link: https://lore.kernel.org/r/20200601211749.6878-1-rrobgill@protonmail.com Signed-off-by:

Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/core/devices.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -133,6 +133,10 @@ static const struct class_info clas_info[] = {
		{USB_CLASS_CSCID, "scard"},
		{USB_CLASS_CONTENT_SEC, "c-sec"},
		{USB_CLASS_VIDEO, "video"},
		{USB_CLASS_PERSONAL_HEALTHCARE, "perhc"},
		{USB_CLASS_AUDIO_VIDEO, "av"},
		{USB_CLASS_BILLBOARD, "blbrd"},
		{USB_CLASS_USB_TYPE_C_BRIDGE, "bridg"},
		{USB_CLASS_WIRELESS_CONTROLLER, "wlcon"},
		{USB_CLASS_MISC, "misc"},
		{USB_CLASS_APP_SPEC, "app."},

include/uapi/linux/usb/ch9.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -326,6 +326,10 @@ struct usb_device_descriptor {
		#define USB_CLASS_CONTENT_SEC 0x0d /* content security */
		#define USB_CLASS_VIDEO 0x0e
		#define USB_CLASS_WIRELESS_CONTROLLER 0xe0
		#define USB_CLASS_PERSONAL_HEALTHCARE 0x0f
		#define USB_CLASS_AUDIO_VIDEO 0x10
		#define USB_CLASS_BILLBOARD 0x11
		#define USB_CLASS_USB_TYPE_C_BRIDGE 0x12
		#define USB_CLASS_MISC 0xef
		#define USB_CLASS_APP_SPEC 0xfe
		#define USB_CLASS_VENDOR_SPEC 0xff

Admin message