Unknown user в 08:14, 15 октября 2014

2014-10-15T08:14:06Z

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= How to cross-compile compat-drivers package to use with arm android/linux/etc =

Wget latest compat-drivers, unpack.

* Select rt2x00 drivers with command
<pre>
cd compat-drivers-folder
./scripts/driver-select rt2x00
</pre>

* Prepare your kernel
<pre>
cd kernel-folder
make ARCH=arm CROSS_COMPILE=arm-eabi- paz00_android_defconfig
make ARCH=arm CROSS_COMPILE=arm-eabi- -j20
</pre>

* Now compile compat-drivers
<pre>
cd compat-drivers-folder
make ARCH=arm CROSS_COMPILE=arm-eabi- -j20 KLIB=path-to-kernel-forlder KLIB_BUILD=path-to-kernel-forlder
</pre>

* If compilation fails with error like this
<pre>
include/linux/device.h: In function 'root_device_register':
include/linux/device.h:724: error: 'THIS_MODULE' undeclared (first use in this function)
include/linux/device.h:724: error: (Each undeclared identifier is reported only once
include/linux/device.h:724: error: for each function it appears in.)
</pre>

Insert your kernel export.h to compat-drivers includes (normal for downstream kernels problem, because of various backported subsys), like made in this patch:
<pre>
diff --git a/include/linux/compat-2.6.h b/include/linux/compat-2.6.h
index 1e9effb..47f7434 100644
--- a/include/linux/compat-2.6.h
+++ b/include/linux/compat-2.6.h
<at> <at> -43,6 +43,7 <at> <at> void backport_dependency_symbol(void);
* Each compat file represents compatibility code for new kernel
* code introduced for *that* kernel revision.
*/
+#include </cyanogenmod/kernel/sony/msm8x60/include/linux/export.h>

#include <linux/compat-2.6.22.h>
#include <linux/compat-2.6.23.h>
</pre>

= Changes for backports =

* To fix includes
<pre>
backport-include/linux/module.h:38:#include </home/zombah/src/cm-10/kernel/toshiba/ac100/include/linux/export.h>
</pre>

* Backports defconfig draft
<pre>
CPTCFG_CFG80211=m
CPTCFG_CFG80211_DEFAULT_PS=y
CPTCFG_CFG80211_DEBUGFS=y
CPTCFG_CFG80211_WEXT=y
CPTCFG_MAC80211=m
# CPTCFG_MAC80211_RC_PID is not set
# CPTCFG_MAC80211_RC_MINSTREL is not set
# CPTCFG_MAC80211_RC_DEFAULT_MINSTREL is not set
CPTCFG_MAC80211_DEBUGFS=y
CPTCFG_MAC80211_MESSAGE_TRACING=y
CPTCFG_WLAN=y
CPTCFG_USB_NET_RNDIS_WLAN=m
CPTCFG_RT2X00=m
# CPTCFG_RT2500USB is not set
# CPTCFG_RT73USB is not set
CPTCFG_RT2800USB=m
# CPTCFG_RT2800USB_RT33XX is not set
# CPTCFG_RT2800USB_RT35XX is not set
# CPTCFG_RT2800USB_RT3573 is not set
# CPTCFG_RT2800USB_RT53XX is not set
# CPTCFG_RT2800USB_RT55XX is not set
# CPTCFG_RT2800USB_UNKNOWN is not set
CPTCFG_RT2800_LIB=m
CPTCFG_RT2X00_LIB_USB=m
CPTCFG_RT2X00_LIB=m
CPTCFG_RT2X00_LIB_FIRMWARE=y
CPTCFG_RT2X00_LIB_CRYPTO=y
CPTCFG_RT2X00_LIB_LEDS=y
# CPTCFG_RT2X00_DEBUG is not set

#
# USB Network Adapters
#
CPTCFG_USB_USBNET=m
CPTCFG_USB_NET_CDCETHER=m
CPTCFG_USB_NET_CDC_NCM=m
CPTCFG_USB_NET_CDC_MBIM=m
CPTCFG_USB_NET_RNDIS_HOST=m
CPTCFG_USB_NET_QMI_WWAN=m
CPTCFG_USB_SIERRA_NET=m
CPTCFG_SSB_POSSIBLE=y
</pre>

* Compiled modules locations
<pre>
path/backports-20131011/compat/compat.ko
path/backports-20131011/drivers/net/usb/cdc_mbim.ko
path/backports-20131011/drivers/net/usb/cdc_ncm.ko
path/backports-20131011/drivers/net/usb/qmi_wwan.ko
path/backports-20131011/drivers/net/usb/rndis_host.ko
path/backports-20131011/drivers/net/usb/sierra_net.ko
path/backports-20131011/drivers/net/usb/usbnet.ko
path/backports-20131011/drivers/net/wireless/rndis_wlan.ko
path/backports-20131011/drivers/net/wireless/rt2x00/rt2800lib.ko
path/backports-20131011/drivers/net/wireless/rt2x00/rt2800usb.ko
path/backports-20131011/drivers/net/wireless/rt2x00/rt2x00lib.ko
path/backports-20131011/drivers/net/wireless/rt2x00/rt2x00usb.ko
path/backports-20131011/drivers/usb/class/cdc-wdm.ko
path/backports-20131011/net/mac80211/mac80211.ko
path/backports-20131011/net/wireless/cfg80211.ko
</pre>

= Which versions work =

compat-wireless-3.4-rc3-1 first version in which timeout loop problem noticed.

looks best for now compat-wireless-3.2.5-1

== Fix timeouts ==

* Seems this patch is correct fix for timeout problems http://rt2x00.serialmonkey.com/pipermail/users_rt2x00.serialmonkey.com/2013-October/006506.html

Cross Compile compat-drivers - История изменений

Unknown user в 08:14, 15 октября 2014