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authorChunfeng Yun <chunfeng.yun@mediatek.com>2019-03-21 05:27:56 +0300
committerFelipe Balbi <felipe.balbi@linux.intel.com>2019-05-03 09:13:48 +0300
commit4035c5b5f2e13b96b6dd5a6d746adad269f832cf (patch)
tree307a39e408a56daca32ef78181fee053257031f2 /include/linux/usb
parent41a91c606e7d2b74358a944525267cc451c271e8 (diff)
downloadlinux-4035c5b5f2e13b96b6dd5a6d746adad269f832cf.tar.xz
usb: introduce usb_ep_type_string() function
In some places, the code prints a human-readable USB endpoint transfer type (e.g. "bulk"). This involves a switch statement sometimes wrapped around in ({ ... }) block leading to code repetition. To make this scenario easier, here introduces usb_ep_type_string() function, which returns a human-readable name of provided endpoint type. It also changes a few places switch was used to use this new function. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'include/linux/usb')
-rw-r--r--include/linux/usb/ch9.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h
index 523aa088f6ab..da82606be605 100644
--- a/include/linux/usb/ch9.h
+++ b/include/linux/usb/ch9.h
@@ -37,6 +37,14 @@
#include <uapi/linux/usb/ch9.h>
/**
+ * usb_ep_type_string() - Returns human readable-name of the endpoint type.
+ * @ep_type: The endpoint type to return human-readable name for. If it's not
+ * any of the types: USB_ENDPOINT_XFER_{CONTROL, ISOC, BULK, INT},
+ * usually got by usb_endpoint_type(), the string 'unknown' will be returned.
+ */
+extern const char *usb_ep_type_string(int ep_type);
+
+/**
* usb_speed_string() - Returns human readable-name of the speed.
* @speed: The speed to return human-readable name for. If it's not
* any of the speeds defined in usb_device_speed enum, string for