aboutsummaryrefslogtreecommitdiffstats
path: root/include/linux/usb.h
diff options
context:
space:
mode:
authorWolfgang Wiedmeyer <wolfgit@wiedmeyer.de>2017-02-05 21:44:51 +0100
committerWolfgang Wiedmeyer <wolfgit@wiedmeyer.de>2017-06-23 20:49:08 +0200
commitc91da92ef2983ab3d50f5d6e5cbaf993fece6339 (patch)
tree4eeb8952954fcdef9b21c14bc60473806a69415b /include/linux/usb.h
parenta46b825a2f8cabebfa2bdc44342c676c0a620905 (diff)
downloadkernel_samsung_smdk4412-c91da92ef2983ab3d50f5d6e5cbaf993fece6339.zip
kernel_samsung_smdk4412-c91da92ef2983ab3d50f5d6e5cbaf993fece6339.tar.gz
kernel_samsung_smdk4412-c91da92ef2983ab3d50f5d6e5cbaf993fece6339.tar.bz2
drivers: Backport cdc-wdm and new qmi_wwan
Backport is based on Aleksander Morgado's backport for OpenWrt to the 3.2 kernel[1], so it's a backport of a backport. I added the device IDs for MDM9x15. [1] https://gitorious.org/lanedo/linux-stable?p=lanedo:linux-stable.git;a=shortlog;h=refs/heads/v3.2.5-qmi Signed-off-by: Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de>
Diffstat (limited to 'include/linux/usb.h')
-rw-r--r--include/linux/usb.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/usb.h b/include/linux/usb.h
index eecfc67e..b639d84 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -1605,6 +1605,19 @@ usb_maxpacket(struct usb_device *udev, int pipe, int is_out)
/* ----------------------------------------------------------------------- */
+/* translate USB error codes to codes user space understands */
+static inline int usb_translate_errors(int error_code)
+{
+ switch (error_code) {
+ case 0:
+ case -ENOMEM:
+ case -ENODEV:
+ return error_code;
+ default:
+ return -EIO;
+ }
+}
+
/* Events from the usb core */
#define USB_DEVICE_ADD 0x0001
#define USB_DEVICE_REMOVE 0x0002