From: Al Viro <viro@ftp.linux.org.uk>
To: torvalds@linux-foundation.org
Cc: linux-kernel@vger.kernel.org, jkosina@suse.cz, gregkh@suse.de
Subject: [PATCH] usbhid endianness annotations and fixes
Date: Mon, 28 Apr 2008 07:00:05 +0100 [thread overview]
Message-ID: <E1JqMPF-0004oO-W8@ZenIV.linux.org.uk> (raw)
usb_control_msg() converts arguments to little-endian itself,
doing that in caller means breakage on big-endian boxen.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
drivers/hid/usbhid/hid-core.c | 2 +-
include/linux/hid.h | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index e0d805f..01427c5 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -654,7 +654,7 @@ static int usbhid_output_raw_report(struct hid_device *hid, __u8 *buf, size_t co
ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
HID_REQ_SET_REPORT,
USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
- cpu_to_le16(((HID_OUTPUT_REPORT + 1) << 8) | *buf),
+ ((HID_OUTPUT_REPORT + 1) << 8) | *buf,
interface->desc.bInterfaceNumber, buf + 1, count - 1,
USB_CTRL_SET_TIMEOUT);
diff --git a/include/linux/hid.h b/include/linux/hid.h
index d951ec4..4ce3b7a 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -498,13 +498,13 @@ struct hid_parser {
struct hid_class_descriptor {
__u8 bDescriptorType;
- __u16 wDescriptorLength;
+ __le16 wDescriptorLength;
} __attribute__ ((packed));
struct hid_descriptor {
__u8 bLength;
__u8 bDescriptorType;
- __u16 bcdHID;
+ __le16 bcdHID;
__u8 bCountryCode;
__u8 bNumDescriptors;
--
1.5.3.GIT
next reply other threads:[~2008-04-28 6:01 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-28 6:00 Al Viro [this message]
2008-04-28 7:15 ` Jiri Kosina
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=E1JqMPF-0004oO-W8@ZenIV.linux.org.uk \
--to=viro@ftp.linux.org.uk \
--cc=gregkh@suse.de \
--cc=jkosina@suse.cz \
--cc=linux-kernel@vger.kernel.org \
--cc=torvalds@linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®