iw dev wlan0 interface add [virtual-sta-name] type station
iw dev wlan0 interface add [virtual-ap-name] type __ap
ip link set [interface-name] address [unique-mac-addr]
iw dev [dev-name] del
May 27, 2015
ath9k create multiple interfaces
iw dev wlan0 interface add [virtual-sta-name] type station
iw dev wlan0 interface add [virtual-ap-name] type __ap
ip link set [interface-name] address [unique-mac-addr]
iw dev [dev-name] del
use iw to check wlan device status
$ cat /proc/net/wireless
Inter-| sta-| Quality | Discarded packets | Missed | WE
face | tus | link level noise | nwid crypt frag retry misc | beacon | 22
wlan0: 0000 56. -54. -256 0 0 0 0 0 0
OR
$ iw dev wlan0 link
Connected to 00:10:7A:93:AE:BF (on wlan0)
SSID: SECRETSSID
freq: 2462
RX: 89045514 bytes (194863 packets)
TX: 34783321 bytes (164504 packets)
signal: -54 dBm
tx bitrate: 48.0 MBit/sMay 26, 2015
openwrt unbind led gpios
# Turn off the LEDs
root@OpenWrt:/# echo "leds-gpio" > /sys/bus/platform/drivers/leds-gpio/unbind
root@OpenWrt:/# cat /sys/kernel/debug/gpio
GPIOs 0-21, ar2315-gpio:
gpio-0 (sysfs ) in lo
gpio-5 (reset ) in hi
gpio-6 (sysfs ) in lo
Now you can use gpio export (i.e echo 11 > /sys/class/gpio/export), and change 'direction' and 'value' of the gpio to directly control it.
root@OpenWrt:/# echo "leds-gpio" > /sys/bus/platform/drivers/leds-gpio/unbind
root@OpenWrt:/# cat /sys/kernel/debug/gpio
GPIOs 0-21, ar2315-gpio:
gpio-0 (sysfs ) in lo
gpio-5 (reset ) in hi
gpio-6 (sysfs ) in lo
Now you can use gpio export (i.e echo 11 > /sys/class/gpio/export), and change 'direction' and 'value' of the gpio to directly control it.
May 20, 2015
cross compile openJDK for ARM
Source: http://mail.openjdk.java.net/pipermail/zero-dev/2014-December/000538.html
when I cross-compile OpenJDK 9 for ARM32 I pass the following configure options configure # these options tell openjdk to do a cross compile build. --build=x86_64-unknown-linux-gnu --host=arm-buildroot-linux-gnueabi --target=arm-buildroot-linux-gnueabi # these two options enable zero --with-jvm-interpreter=cpp --with-jvm-variants=zero # specific options to make the build find the X and freetype headers and librarys found on the ARM32 root filesystem. --disable-freetype-bundling --with-freetype-include=/home/xranby/rpi-buildroot/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/include/freetype2 --with-freetype-lib=/home/xranby/rpi-buildroot/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/lib --with-freetype=/home/xranby/rpi-buildroot/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/ --with-x=/home/xranby/rpi-buildroot/output/host/usr/arm-buildroot-linux-gnueabi/sysroot/usr/include # the sysroot shall point to the ARM32 root file system, the build will use librarys inside the sys root during linking native libraries. --with-sys-root=/home/xranby/rpi-buildroot/output/host/usr/arm-buildroot-linux-gnueabi/sysroot # The tools dir contains binarys to run on the host x86 system, you may point this to your system root dir / # in my case the tools i use have been compiled by buildroot thus I use the buildroot tools dir. --with-tools-dir=/home/xranby/rpi-buildroot/output/host # OpenJDK 9 require OpenJDK 8, i point with boot jdk to an OpenJDK 8 image that can be run on the host x86 system. --with-boot-jdk=/home/xranby/images-jdk8/j2sdk-image/ # some parts of the openjdk build still expect that the cross compile tools are found in the system PATH # on my system i have to explicitly tell where the tools are located because my cross compile toolchain is not found on the path. # i use gcc to do the linking instead of ld because the openjdk build passes -Xlinker -z OBJCOPY=/home/xranby/rpi-buildroot/output/host/usr/bin/arm-buildroot-linux-gnueabi-objcopy STRIP=/home/xranby/rpi-buildroot/output/host/usr/bin/arm-buildroot-linux-gnueabi-strip CPP=/home/xranby/rpi-buildroot/output/host/usr/bin/arm-buildroot-linux-gnueabi-cpp CXX=/home/xranby/rpi-buildroot/output/host/usr/bin/arm-buildroot-linux-gnueabi-g++ CC=/home/xranby/rpi-buildroot/output/host/usr/bin/arm-buildroot-linux-gnueabi-gcc LD=/home/xranby/rpi-buildroot/output/host/usr/bin/arm-buildroot-linux-gnueabi-gcc CPP_FLAGS=-lstdc++ CXX_FLAGS=-lstdc++ when running make i pass the following options to make # BUILD_CC and BUILD_LD shall point to host x86 executables. BUILD_CC=gcc BUILD_LD=gcc OBJCOPY=/home/xranby/rpi-buildroot/output/host/usr/bin/arm-buildroot-linux-gnueabi-objcopy STRIP=/home/xranby/rpi-buildroot/output/host/usr/bin/arm-buildroot-linux-gnueabi-strip CPP=/home/xranby/rpi-buildroot/output/host/usr/bin/arm-buildroot-linux-gnueabi-cpp CXX=/home/xranby/rpi-buildroot/output/host/usr/bin/arm-buildroot-linux-gnueabi-g++ CC=/home/xranby/rpi-buildroot/output/host/usr/bin/arm-buildroot-linux-gnueabi-gcc LD=/home/xranby/rpi-buildroot/output/host/usr/bin/arm-buildroot-linux-gnueabi-gcc #and finally the target, this will build compact profiles, jre and jdk images. all images profiles CONF=linux-arm-normal-zero-release I have automated these configure and make options for openjdk 9 into buildroot build scripts https://github.com/xranby/rpi-buildroot/tree/openjdk > > I've done Zero builds before but have never used OpenJDK's cross-compile > feature to build it on ARMv7. There is an Arm32 bit JIT in IcedTea[1], > but I don't know if that can be cross-compiled. If you cross compile icedtea then you need to make sure that the bytecode generator tool is compiled by the host x86 toolchain. openembedded meta-java contains buildscripts that can cross compile the Arm32 JIT found in IcedTea. https://github.com/woglinde/meta-java Cheers Xerxes
May 6, 2015
hg change history
hg rebase, hg histedit, hg graft, hg strip, hg strip --keep, and hg commit --amend.
April 30, 2015
vim ctags tags path
This line in your
It tells Vim to look for a
~/.vimrc should help:set tags=./tags,tags;$HOME
It tells Vim to look for a
tags file in the directory of the current file, in the current directory and up and up until your $HOME (that's the meaning of the semicolon), stopping on the first hit.
April 27, 2015
golang win32 UI
https://github.com/lxn/walk
OR
https://github.com/AllenDang/gform
OR
https://github.com/andlabs/ui
OR
https://github.com/AllenDang/gform
OR
https://github.com/andlabs/ui
April 23, 2015
USB terms
In the USB world, the most basic data transfer is done in packet, but to understand the on-the-wire protocol, there are other things to understand.
Packet
USB Packet types: (Source: http://www.usbmadesimple.co.uk/ums_3.htm)
Transaction:
One transaction has 3 packets: Token + Data + Handshake for a successful transaction. (*). Nak and Stall error condition could happen after Token when no data is available.
There are 3 types of transactions: IN, OUT, SETUP
*: For IN and OUT transactions used for isochronous transfers, there are only 2 packets; there is no handshake packet.
Transfer:
There are 4 types of transfer:
Packet
USB Packet types: (Source: http://www.usbmadesimple.co.uk/ums_3.htm)
| PID Type | PID Name | PID<3:0>* |
| Token | OUT | 0001b |
| IN | 1001b | |
| SOF | 0101b | |
| SETUP | 1101b | |
| Data | DATA0 | 0011b |
| DATA1 | 1011b | |
| DATA2 | 0111b | |
| MDATA | 1111b | |
| Handshake | ACK | 0010b |
| NAK | 1010b | |
| STALL | 1110b | |
| NYET | 0110b | |
| Special | PRE | 1100b |
| ERR | 1100b | |
| SPLIT | 1000b | |
| PING | 0100b | |
| Reserved | 0000b |
Transaction:
One transaction has 3 packets: Token + Data + Handshake for a successful transaction. (*). Nak and Stall error condition could happen after Token when no data is available.
There are 3 types of transactions: IN, OUT, SETUP
*: For IN and OUT transactions used for isochronous transfers, there are only 2 packets; there is no handshake packet.
Transfer:
There are 4 types of transfer:
- Control
- Interrupt
- Bulk
- Isochronous (such as audio data)
HID device only uses Control and Interrupt
Control transfer = 3 transactions: SETUP + IN/OUT DATA + STATUS(IN/OUT transaction)
Other transfers has just one transaction: IN/OUT data.
In general, you want to pay attention to Transfer or Transaction level, not packet level.
April 22, 2015
prevent ssh client timeout
Add this in
/etc/ssh/ssh_config for Linux and ~/.ssh/config for Mac:
Host *
ServerAliveInterval 120
linux cp without overwrite
You can use "-n" option.
If you are on a embedded linux box with busybox, it does not have that option. You can this instead:
false | cp -i source destination 2>/dev/null
If you are on a embedded linux box with busybox, it does not have that option. You can this instead:
false | cp -i source destination 2>/dev/null
April 16, 2015
Vim show C function name
Put this in your .vimrc file, and use key "f" to show current function name:
fun! ShowFuncName()
let lnum = line(".")
let col = col(".")
echohl ModeMsg
echo getline(search("^[^ \t#/]\\{2}.*[^:]\s*$", 'bW'))
echohl None
call search("\\%" . lnum . "l" . "\\%" . col . "c")
endfun
map f :call ShowFuncName() <CR>
fun! ShowFuncName()
let lnum = line(".")
let col = col(".")
echohl ModeMsg
echo getline(search("^[^ \t#/]\\{2}.*[^:]\s*$", 'bW'))
echohl None
call search("\\%" . lnum . "l" . "\\%" . col . "c")
endfun
map f :call ShowFuncName() <CR>
April 15, 2015
golang combine static data (css/js/images/) with binary file
https://github.com/tiebingzhang/statik (zip the contents and compiled it into go source code, very small code base, this is a github fork with the slash fix)
https://github.com/jteeuwen/go-bindata
https://github.com/GeertJohan/go.rice (can either compile zip into go source, or append the zip to existing go EXE, more flexible but code base is a little larger)
https://github.com/jteeuwen/go-bindata
https://github.com/GeertJohan/go.rice (can either compile zip into go source, or append the zip to existing go EXE, more flexible but code base is a little larger)
April 14, 2015
script to detected unused C files
If you have a large project with a lot of C files, once you compiled them, you will end up with a lot of .o files. Then you can use the .o files to find out which .c files is not used (conditionally compiled/not compiled). To do this, follow the steps below:
1. cd subdir
2. ls -1 > ../1.out
3. gawk -f lsnu.awk ../1.out
The lsnu.awk script
{
if ($1 ~ /\.c$/){
cfiles[$1]=1;
print $1;
next;
}
if ($1 ~ /\.o$/){
ofiles[$1]=1;
#printf("%s\n",$1);
next;
}
}
END{
printf("-------------\n");
for ( i in cfiles){
f=i;
gsub(/\.c$/,".o",i);
if (ofiles[i]!=1){
printf("%s ",f);
}
}
printf("\n");
}
1. cd subdir
2. ls -1 > ../1.out
3. gawk -f lsnu.awk ../1.out
The lsnu.awk script
{
if ($1 ~ /\.c$/){
cfiles[$1]=1;
print $1;
next;
}
if ($1 ~ /\.o$/){
ofiles[$1]=1;
#printf("%s\n",$1);
next;
}
}
END{
printf("-------------\n");
for ( i in cfiles){
f=i;
gsub(/\.c$/,".o",i);
if (ofiles[i]!=1){
printf("%s ",f);
}
}
printf("\n");
}
March 12, 2015
cmake add include path and library path
Some tips for cMake beginners. This is done on Linux.
How to use cMake
cmake generates a bunch of intermediate files, including the final Makefile. To make things clean, make a separate directory for the build process:
mkdir build
cd build
cmake ..
To re-run cmake after changing the CMakeLists.txt, do:
cd build
rm -rf *
cmake ..
Cross Compile to ARM
To cross compile to an embedded target, add the following lines to you CMakeLists.txt at the very top (after VERSION)
SET(CMAKE_SYSTEM_NAME Linux)
SET(CMAKE_C_COMPILER arm-none-linux-gnueabi-gcc)
Add include paths
include_directories("${PROJECT_SOURCE_DIR}/../" "${PROJECT_SOURCE_DIR}/build/" "${PROJECT_SOURCE_DIR}")
Add a library
FIND_LIBRARY(json json-c json)
1st parameter: output, The variable that will hold the results of FIND_LIBRARY
2nd parameter: the library to look for (in this case, libjson-c.so)
3rd parameter: the path to look, starting with ${PROJECT_SOURCE_DIR}
The returned varilable can be used in the following statement to add the library to link time:
TARGET_LINK_LIBRARIES(${json})
How to use cMake
cmake generates a bunch of intermediate files, including the final Makefile. To make things clean, make a separate directory for the build process:
mkdir build
cd build
cmake ..
To re-run cmake after changing the CMakeLists.txt, do:
cd build
rm -rf *
cmake ..
Cross Compile to ARM
To cross compile to an embedded target, add the following lines to you CMakeLists.txt at the very top (after VERSION)
SET(CMAKE_SYSTEM_NAME Linux)
SET(CMAKE_C_COMPILER arm-none-linux-gnueabi-gcc)
Add include paths
include_directories("${PROJECT_SOURCE_DIR}/../" "${PROJECT_SOURCE_DIR}/build/" "${PROJECT_SOURCE_DIR}")
FIND_LIBRARY(json json-c json)
1st parameter: output, The variable that will hold the results of FIND_LIBRARY
2nd parameter: the library to look for (in this case, libjson-c.so)
3rd parameter: the path to look, starting with ${PROJECT_SOURCE_DIR}
The returned varilable can be used in the following statement to add the library to link time:
TARGET_LINK_LIBRARIES(${json})
Assign a variable
SET(LIBS ${ubox} ${blobmsg_json} ${json})
assigns the concatenated value of ubox, blobmsg_json and json to the variable LIBS
March 11, 2015
Linux running 4G LTE modem
The modem I have is Sierra Wireless Air Prime MC7453 Mini PCI Express Module. The carrier I tested is AT&T.
Before running on Linux, I had to install the card on a regular Laptop that supports 4G card, and run Windows 7 on the laptop, install all the drivers and the Sierra Wireless Connect Manager to try out the card. This confirmed that the card has the latest firmware, and the carrier setting is correct, etc.
Next I run it on Linux. Instead of using the Gobi driver from Sierra Wireless, I used the qmi_wwan driver in the latest Linux (after kernel version 3.14). An user land utility is also needed. libqmi seems to be popular, but it depends on a fairly new version of glib, which itself depends on a bunch of libraries. It becomes a hassle to compile everything. Then I discovered uqmi, a small utility developed and used by the openwrt project. It's much more lightweight, and seems to be pretty mature. I was able to get my modem to connect and ping with the following commands.
device="/dev/cdc-wdm1"
modes="lte"
uqmi -s -d "$device" --get-pin-status
uqmi -s -d "$device" --get-serving-system
uqmi -s -d "$device" --set-data-format 802.3
uqmi -s -d "$device" --wda-set-data-format 802.3
uqmi -s -d "$device" --set-network-modes "$modes"
wds=`uqmi -s -d "$device" --get-client-id wds`
uqmi -s -d "$device" --set-client-id wds,"$wds" --start-network "ISP.CINGULAR" --autoconnect
uqmi -s -d "$device" --get-signal-info
uqmi -s -d "$device" --get-data-status
dhclient wwan1
Now I can ping
To disconnect:
uqmi -s -d "$device" --stop-network 0xffffffff --autoconnect > /dev/null
[1] The home page of uqmi: http://nbd.name/gitweb.cgi?p=uqmi.git;a=summary
[2] A list of useful commands of how to use uqmi: http://trac.gateworks.com/wiki/modem
[3] The official Openwrt qmi script that uses uqmi: https://dev.openwrt.org/browser/trunk/package/network/utils/uqmi/files/lib/netifd/proto/qmi.sh
[4] Another useful link: https://lists.openwrt.org/pipermail/openwrt-devel/2014-April/025046.html
Before running on Linux, I had to install the card on a regular Laptop that supports 4G card, and run Windows 7 on the laptop, install all the drivers and the Sierra Wireless Connect Manager to try out the card. This confirmed that the card has the latest firmware, and the carrier setting is correct, etc.
Next I run it on Linux. Instead of using the Gobi driver from Sierra Wireless, I used the qmi_wwan driver in the latest Linux (after kernel version 3.14). An user land utility is also needed. libqmi seems to be popular, but it depends on a fairly new version of glib, which itself depends on a bunch of libraries. It becomes a hassle to compile everything. Then I discovered uqmi, a small utility developed and used by the openwrt project. It's much more lightweight, and seems to be pretty mature. I was able to get my modem to connect and ping with the following commands.
device="/dev/cdc-wdm1"
modes="lte"
uqmi -s -d "$device" --get-pin-status
uqmi -s -d "$device" --get-serving-system
uqmi -s -d "$device" --set-data-format 802.3
uqmi -s -d "$device" --wda-set-data-format 802.3
uqmi -s -d "$device" --set-network-modes "$modes"
wds=`uqmi -s -d "$device" --get-client-id wds`
uqmi -s -d "$device" --set-client-id wds,"$wds" --start-network "ISP.CINGULAR" --autoconnect
uqmi -s -d "$device" --get-signal-info
uqmi -s -d "$device" --get-data-status
dhclient wwan1
Now I can ping
To disconnect:
uqmi -s -d "$device" --stop-network 0xffffffff --autoconnect > /dev/null
[1] The home page of uqmi: http://nbd.name/gitweb.cgi?p=uqmi.git;a=summary
[2] A list of useful commands of how to use uqmi: http://trac.gateworks.com/wiki/modem
[3] The official Openwrt qmi script that uses uqmi: https://dev.openwrt.org/browser/trunk/package/network/utils/uqmi/files/lib/netifd/proto/qmi.sh
[4] Another useful link: https://lists.openwrt.org/pipermail/openwrt-devel/2014-April/025046.html
March 5, 2015
How to get Linux USB Report Descriptor when it says UNAVAILABLE
Start by plugging in your USB device and running
The first line input: ... is what we want. It contains the full device path
and in this case we are interested in third last component of the path: 2-4.2:1.0.
To get the USB report Descriptor with "lsusb -v", we need to unbind the device first (as root).
Now run
dmesg to get the
kernel output for the event. It will look something like this:input: Sony PLAYSTATION(R)3 Controller as /devices/pci0000:00/0000:00:04.1/usb2/2-4/2-4.2/2-4.2:1.0/input/input16
To get the USB report Descriptor with "lsusb -v", we need to unbind the device first (as root).
$ sudo bash -c "echo -n 2-4.2:1.0 >/sys/bus/usb/drivers/usbhid/unbind"
Now run
lsusb again for the device and you should see the report descriptor
in the output!$ lsusb -vd 054c:0268
Source:http://www.slashdev.ca/2010/05/08/get-usb-report-descriptor-with-linux/Patch Linux kernel to support Esterline Medigenic keyboard
The Esterline Medigenic keyboard does not work under stock Linux kernel (as of kernel version 4.0RC). This is because the HID Report Descriptor of the keyboard is wrong for Linux (and Mac OS). Under Linux kernel tree driver/hid there are a bunch of "special" drivers for different hid devices, and we can create one for the medigenic keyboard to fix up the HID report descriptor so that it works under Linux.
1. Create a file under driver/hid called hid-medigenic.c with the following content:
/*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
/* the fixups that need to be done:
* - change keyboard Usage Mininum from 1 to 0
*/
static __u8 *medigenic_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
if (*rsize >= 59 &&
rdesc[24] == 0x19 && rdesc[25] == 0x01 &&
rdesc[26] == 0x29 && rdesc[27] == 0x65 ) {
dev_info(&hdev->dev, "fixing up medigenic keyboard report descriptor\n");
rdesc[25] = 0x00;
}
return rdesc;
}
static const struct hid_device_id medigenic_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ESTERLINE, USB_DEVICE_ID_MEDIGENIC) },
{ }
};
MODULE_DEVICE_TABLE(hid, medigenic_devices);
static struct hid_driver medigenic_driver = {
.name = "medigenic",
.id_table = medigenic_devices,
.report_fixup = medigenic_report_fixup,
};
static int __init medigenic_init(void)
{
return hid_register_driver(&medigenic_driver);
}
static void __exit medigenic_exit(void)
{
hid_unregister_driver(&medigenic_driver);
}
module_init(medigenic_init);
module_exit(medigenic_exit);
MODULE_LICENSE("GPL");
2. Edit file driver/hid/hid-ids.h to add the following two lines:
1. Create a file under driver/hid called hid-medigenic.c with the following content:
/*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
/* the fixups that need to be done:
* - change keyboard Usage Mininum from 1 to 0
*/
static __u8 *medigenic_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
if (*rsize >= 59 &&
rdesc[24] == 0x19 && rdesc[25] == 0x01 &&
rdesc[26] == 0x29 && rdesc[27] == 0x65 ) {
dev_info(&hdev->dev, "fixing up medigenic keyboard report descriptor\n");
rdesc[25] = 0x00;
}
return rdesc;
}
static const struct hid_device_id medigenic_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ESTERLINE, USB_DEVICE_ID_MEDIGENIC) },
{ }
};
MODULE_DEVICE_TABLE(hid, medigenic_devices);
static struct hid_driver medigenic_driver = {
.name = "medigenic",
.id_table = medigenic_devices,
.report_fixup = medigenic_report_fixup,
};
static int __init medigenic_init(void)
{
return hid_register_driver(&medigenic_driver);
}
static void __exit medigenic_exit(void)
{
hid_unregister_driver(&medigenic_driver);
}
module_init(medigenic_init);
module_exit(medigenic_exit);
MODULE_LICENSE("GPL");
2. Edit file driver/hid/hid-ids.h to add the following two lines:
#define USB_VENDOR_ID_ESTERLINE 0x059d
#define USB_DEVICE_ID_MEDIGENIC 0x0708
#define USB_DEVICE_ID_MEDIGENIC 0x0708
3. Edit file driver/hid/Kconfig to add the following lines:
config HID_MEDIGENIC
tristate "Medigenic Keyboard Support" if EMBEDDED
depends on USB_HID
default !EMBEDDED
---help---
Support for Medigenic keyboard.
4. Edit file driver/hid/Makefile to add the following line:
obj-$(CONFIG_HID_MEDIGENIC) += hid-medigenic.o
Then in top directory of kernel, do make menuconfig, and exit, and save (somehow medigenic is automatically set to Y when you do this). Check .config to make sure you have the following line:
CONFIG_HID_MEDIGENIC=y
The build your kernel and the keyboard should work now.
memdump function in kernel
void memdump(unsigned char *rdesc, int *rsize){
int i,pos=0;
unsigned char outbuf[256];
printk(KERN_WARNING "rsize=%d\n",*rsize);
for (i=0;i<*rsize;i++){
pos+=sprintf(outbuf+pos,"%02x ",rdesc[i]);
if (i>0 && ((i+1)%16)==0){
printk(KERN_WARNING "%04x dump %s\n",(i/16)*16,outbuf);
pos=0;
}
}
if (pos>0){
printk(KERN_WARNING "%04x dump %s\n",(i/16)*16,outbuf);
}
}
int i,pos=0;
unsigned char outbuf[256];
printk(KERN_WARNING "rsize=%d\n",*rsize);
for (i=0;i<*rsize;i++){
pos+=sprintf(outbuf+pos,"%02x ",rdesc[i]);
if (i>0 && ((i+1)%16)==0){
printk(KERN_WARNING "%04x dump %s\n",(i/16)*16,outbuf);
pos=0;
}
}
if (pos>0){
printk(KERN_WARNING "%04x dump %s\n",(i/16)*16,outbuf);
}
}
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