how to cross compile code when the target is for another kernel version ?

hi, i would like to get direction on how to compile the rt3090 driver found here:
http://www.ralinktech.com/en/04_supp...ort.php?sn=501

for the 3.1.0 kernel used in openelec.tv.


if i just use make/ gcc on my current fedora-15 setup could i just scp the *.ko to the other machine and load it ?

thanks,

p.s.: another possibility would be installing gcc on the openelec machine but since it is not based on debian/ fedora/ ubuntu there is are no repos.

i know nothing about openelec but it looks like there is a
gcc meta package in the repository

http://passion-xbmc.org/addons/?Page...repo.installer

i think you have to set up/add the repository installer in some way.

i tried downloading kernel-devel-3.1.0-7.fc16.x86_64.rpm for fedora-15 but i get this error while trying to compile the driver:

[liveuser@localhost sta]$ ll
total 96
drwxrwxr-x. 2 liveuser liveuser  4096 Nov 27 23:27 chips
drwxrwxr-x. 2 liveuser liveuser  4096 Nov 27 23:27 common
drwxrwxr-x. 5 liveuser liveuser  4096 Nov 27 23:27 include
-rw-rw-r--. 1 liveuser liveuser 14819 Nov 27 23:27 iwpriv_usage.txt
-rw-rw-r--. 1 liveuser liveuser 12573 Nov 27 23:27 Makefile
drwxrwxr-x. 3 liveuser liveuser  4096 Nov 27 23:27 os
-rw-rw-r--. 1 liveuser liveuser 13366 Nov 27 23:27 README_STA_pci
-rw-rw-r--. 1 liveuser liveuser   613 Nov 27 23:27 RT2860STACard.dat
-rw-rw-r--. 1 liveuser liveuser  1124 Nov 27 23:27 RT2860STA.dat
drwxrwxr-x. 2 liveuser liveuser  4096 Nov 27 23:27 sta
-rw-rw-r--. 1 liveuser liveuser 14253 Nov 27 23:27 sta_ate_iwpriv_usage.txt
drwxrwxr-x. 2 liveuser liveuser  4096 Nov 27 23:52 tools
[liveuser@localhost sta]$ make
make -C tools
make[1]: Entering directory `/home/liveuser/sta/tools'
gcc -g bin2h.c -o bin2h
make[1]: Leaving directory `/home/liveuser/sta/tools'
/home/liveuser/sta/tools/bin2h
cp -f os/linux/Makefile.6 /home/liveuser/sta/os/linux/Makefile
make -C /lib/modules/2.6.40.6-0.fc15.x86_64/build SUBDIRS=/home/liveuser/sta/os/linux modules
make[1]: Entering directory `/usr/src/kernels/3.1.0-7.fc16.x86_64'
  CC [M]  /home/liveuser/sta/os/linux/../../common/crypt_md5.o
  CC [M]  /home/liveuser/sta/os/linux/../../common/crypt_sha2.o
  CC [M]  /home/liveuser/sta/os/linux/../../common/crypt_hmac.o
  CC [M]  /home/liveuser/sta/os/linux/../../common/crypt_aes.o
  CC [M]  /home/liveuser/sta/os/linux/../../common/crypt_arc4.o
  CC [M]  /home/liveuser/sta/os/linux/../../common/mlme.o
/home/liveuser/sta/os/linux/../../common/mlme.c: In function ‘MlmeResetRalinkCounters’:
/home/liveuser/sta/os/linux/../../common/mlme.c:870:2: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
/home/liveuser/sta/os/linux/../../common/mlme.c:870:2: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
/home/liveuser/sta/os/linux/../../common/mlme.c: In function ‘BssTableSetEntry’:
/home/liveuser/sta/os/linux/../../common/mlme.c:5822:39: warning: operation on ‘Tab->BssOverlapNr’ may be undefined [-Wsequence-point]
  CC [M]  /home/liveuser/sta/os/linux/../../common/cmm_wep.o
  CC [M]  /home/liveuser/sta/os/linux/../../common/action.o
  CC [M]  /home/liveuser/sta/os/linux/../../common/cmm_data.o
  CC [M]  /home/liveuser/sta/os/linux/../../common/rtmp_init.o
  CC [M]  /home/liveuser/sta/os/linux/../../common/cmm_tkip.o
  CC [M]  /home/liveuser/sta/os/linux/../../common/cmm_aes.o
  CC [M]  /home/liveuser/sta/os/linux/../../common/cmm_sync.o
  CC [M]  /home/liveuser/sta/os/linux/../../common/eeprom.o
  CC [M]  /home/liveuser/sta/os/linux/../../common/cmm_sanity.o
  CC [M]  /home/liveuser/sta/os/linux/../../common/cmm_info.o
  CC [M]  /home/liveuser/sta/os/linux/../../common/cmm_cfg.o
  CC [M]  /home/liveuser/sta/os/linux/../../common/cmm_wpa.o
  CC [M]  /home/liveuser/sta/os/linux/../../common/dfs.o
  CC [M]  /home/liveuser/sta/os/linux/../../common/spectrum.o
/home/liveuser/sta/os/linux/../../common/spectrum.c: In function ‘PeerMeasureReportAction’:
/home/liveuser/sta/os/linux/../../common/spectrum.c:1966:3: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long unsigned int’ [-Wformat]
  CC [M]  /home/liveuser/sta/os/linux/../../common/rtmp_timer.o
  CC [M]  /home/liveuser/sta/os/linux/../../common/rt_channel.o
  CC [M]  /home/liveuser/sta/os/linux/../../common/cmm_profile.o
  CC [M]  /home/liveuser/sta/os/linux/../../common/cmm_asic.o
  CC [M]  /home/liveuser/sta/os/linux/../../common/cmm_cmd.o
  CC [M]  /home/liveuser/sta/os/linux/../../sta/assoc.o
  CC [M]  /home/liveuser/sta/os/linux/../../sta/auth.o
  CC [M]  /home/liveuser/sta/os/linux/../../sta/auth_rsp.o
  CC [M]  /home/liveuser/sta/os/linux/../../sta/sync.o
  CC [M]  /home/liveuser/sta/os/linux/../../sta/sanity.o
  CC [M]  /home/liveuser/sta/os/linux/../../sta/rtmp_data.o
  CC [M]  /home/liveuser/sta/os/linux/../../sta/connect.o
  CC [M]  /home/liveuser/sta/os/linux/../../sta/wpa.o
  CC [M]  /home/liveuser/sta/os/linux/../../sta/ags.o
  CC [M]  /home/liveuser/sta/os/linux/../../sta/sta_cfg.o
  CC [M]  /home/liveuser/sta/os/linux/../../common/rtmp_init_inf.o
  CC [M]  /home/liveuser/sta/os/linux/../../os/linux/rt_profile.o
  CC [M]  /home/liveuser/sta/os/linux/../../os/linux/sta_ioctl.o
  CC [M]  /home/liveuser/sta/os/linux/../../os/linux/rt_linux.o
/home/liveuser/sta/os/linux/../../os/linux/rt_linux.c: In function ‘duplicate_pkt’:
/home/liveuser/sta/os/linux/../../os/linux/rt_linux.c:484:3: warning: passing argument 1 of ‘memmove’ makes pointer from integer without a cast [enabled by default]
/usr/src/kernels/3.1.0-7.fc16.x86_64/arch/x86/include/asm/string_64.h:58:7: note: expected ‘void *’ but argument is of type ‘sk_buff_data_t’
/home/liveuser/sta/os/linux/../../os/linux/rt_linux.c:486:3: warning: passing argument 1 of ‘memmove’ makes pointer from integer without a cast [enabled by default]
/usr/src/kernels/3.1.0-7.fc16.x86_64/arch/x86/include/asm/string_64.h:58:7: note: expected ‘void *’ but argument is of type ‘sk_buff_data_t’
/home/liveuser/sta/os/linux/../../os/linux/rt_linux.c: In function ‘ClonePacket’:
/home/liveuser/sta/os/linux/../../os/linux/rt_linux.c:636:23: warning: assignment makes integer from pointer without a cast [enabled by default]
/home/liveuser/sta/os/linux/../../os/linux/rt_linux.c: In function ‘update_os_packet_info’:
/home/liveuser/sta/os/linux/../../os/linux/rt_linux.c:658:15: warning: assignment makes integer from pointer without a cast [enabled by default]
/home/liveuser/sta/os/linux/../../os/linux/rt_linux.c: In function ‘wlan_802_11_to_802_3_packet’:
/home/liveuser/sta/os/linux/../../os/linux/rt_linux.c:679:15: warning: assignment makes integer from pointer without a cast [enabled by default]
/home/liveuser/sta/os/linux/../../os/linux/rt_linux.c: In function ‘send_monitor_packets’:
/home/liveuser/sta/os/linux/../../os/linux/rt_linux.c:952:9: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long unsigned int’ [-Wformat]
/home/liveuser/sta/os/linux/../../os/linux/rt_linux.c: In function ‘RtmpOSNetDevDetach’:
/home/liveuser/sta/os/linux/../../os/linux/rt_linux.c:1701:38: warning: initialization discards ‘const’ qualifier from pointer target type [enabled by default]
/home/liveuser/sta/os/linux/../../os/linux/rt_linux.c: In function ‘RtmpOSNetDevAttach’:
/home/liveuser/sta/os/linux/../../os/linux/rt_linux.c:1738:38: warning: initialization discards ‘const’ qualifier from pointer target type [enabled by default]
  CC [M]  /home/liveuser/sta/os/linux/../../os/linux/rt_main_dev.o
/home/liveuser/sta/os/linux/../../os/linux/rt_main_dev.c: In function ‘MainVirtualIF_close’:
/home/liveuser/sta/os/linux/../../os/linux/rt_main_dev.c:121:13: warning: unused variable ‘Cancelled’ [-Wunused-variable]
  CC [M]  /home/liveuser/sta/os/linux/../../common/ba_action.o
/home/liveuser/sta/os/linux/../../common/ba_action.c: In function ‘convert_reordering_packet_to_preAMSDU_or_802_3_packet’:
/home/liveuser/sta/os/linux/../../common/ba_action.c:1568:2: warning: assignment makes integer from pointer without a cast [enabled by default]
  CC [M]  /home/liveuser/sta/os/linux/../../common/cmm_mac_pci.o
  CC [M]  /home/liveuser/sta/os/linux/../../common/cmm_data_pci.o
  CC [M]  /home/liveuser/sta/os/linux/../../common/ee_prom.o
  CC [M]  /home/liveuser/sta/os/linux/../../common/ee_efuse.o
  CC [M]  /home/liveuser/sta/os/linux/../../common/rtmp_mcu.o
/home/liveuser/sta/os/linux/../../common/rtmp_mcu.c: In function ‘RtmpAsicLoadFirmware’:
/home/liveuser/sta/os/linux/../../common/rtmp_mcu.c:352:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
/home/liveuser/sta/os/linux/../../common/rtmp_mcu.c:355:2: warning: passing argument 1 of ‘writel’ makes integer from pointer without a cast [enabled by default]
/usr/src/kernels/3.1.0-7.fc16.x86_64/arch/x86/include/asm/io.h:63:1: note: expected ‘unsigned int’ but argument is of type ‘ULONG *’
/home/liveuser/sta/os/linux/../../common/rtmp_mcu.c:356:2: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘ULONG’ [-Wformat]
  CC [M]  /home/liveuser/sta/os/linux/../../chips/rt30xx.o
  CC [M]  /home/liveuser/sta/os/linux/../../common/rt_rf.o
  CC [M]  /home/liveuser/sta/os/linux/../../chips/rt3090.o
  CC [M]  /home/liveuser/sta/os/linux/../../os/linux/rt_pci_rbus.o
  CC [M]  /home/liveuser/sta/os/linux/../../os/linux/rt_rbus_pci_util.o
  CC [M]  /home/liveuser/sta/os/linux/../../os/linux/pci_main_dev.o
/home/liveuser/sta/os/linux/../../os/linux/pci_main_dev.c: In function ‘rt2860_probe’:
/home/liveuser/sta/os/linux/../../os/linux/pci_main_dev.c:309:13: warning: assignment discards ‘const’ qualifier from pointer target type [enabled by default]
/home/liveuser/sta/os/linux/../../os/linux/pci_main_dev.c: In function ‘RTMPrt3xSetPCIePowerLinkCtrl’:
/home/liveuser/sta/os/linux/../../os/linux/pci_main_dev.c:941:2: warning: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘ULONG’ [-Wformat]
/home/liveuser/sta/os/linux/../../os/linux/pci_main_dev.c:974:5: warning: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘ULONG’ [-Wformat]
/home/liveuser/sta/os/linux/../../os/linux/pci_main_dev.c:986:5: warning: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘ULONG’ [-Wformat]
/home/liveuser/sta/os/linux/../../os/linux/pci_main_dev.c:949:11: warning: unused variable ‘vendor_id’ [-Wunused-variable]
/home/liveuser/sta/os/linux/../../os/linux/pci_main_dev.c:1000:2: warning: format ‘%x’ expects argument of type ‘unsigned int’, but argument 3 has type ‘ULONG’ [-Wformat]
/home/liveuser/sta/os/linux/../../os/linux/pci_main_dev.c:1027:3: warning: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘ULONG’ [-Wformat]
/home/liveuser/sta/os/linux/../../os/linux/pci_main_dev.c:934:8: warning: unused variable ‘offset’ [-Wunused-variable]
/home/liveuser/sta/os/linux/../../os/linux/pci_main_dev.c:933:8: warning: unused variable ‘Vendor’ [-Wunused-variable]
/home/liveuser/sta/os/linux/../../os/linux/pci_main_dev.c:1006:4: warning: ‘HostConfiguration’ may be used uninitialized in this function [-Wuninitialized]
  CC [M]  /home/liveuser/sta/os/linux/../../os/linux/cfg80211.o
/home/liveuser/sta/os/linux/../../os/linux/cfg80211.c:679:2: warning: ‘enum tx_power_setting’ declared inside parameter list [enabled by default]
/home/liveuser/sta/os/linux/../../os/linux/cfg80211.c:679:2: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default]
/home/liveuser/sta/os/linux/../../os/linux/cfg80211.c:678:29: error: parameter 2 (‘Type’) has incomplete type
/home/liveuser/sta/os/linux/../../os/linux/cfg80211.c:676:12: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
/home/liveuser/sta/os/linux/../../os/linux/cfg80211.c:1355:2: warning: initialization from incompatible pointer type [enabled by default]
/home/liveuser/sta/os/linux/../../os/linux/cfg80211.c:1355:2: warning: (near initialization for ‘CFG80211_Ops.set_channel’) [enabled by default]
/home/liveuser/sta/os/linux/../../os/linux/cfg80211.c:1378:2: warning: initialization from incompatible pointer type [enabled by default]
/home/liveuser/sta/os/linux/../../os/linux/cfg80211.c:1378:2: warning: (near initialization for ‘CFG80211_Ops.add_key’) [enabled by default]
/home/liveuser/sta/os/linux/../../os/linux/cfg80211.c:1379:2: warning: initialization from incompatible pointer type [enabled by default]
/home/liveuser/sta/os/linux/../../os/linux/cfg80211.c:1379:2: warning: (near initialization for ‘CFG80211_Ops.get_key’) [enabled by default]
/home/liveuser/sta/os/linux/../../os/linux/cfg80211.c:1380:2: warning: initialization from incompatible pointer type [enabled by default]
/home/liveuser/sta/os/linux/../../os/linux/cfg80211.c:1380:2: warning: (near initialization for ‘CFG80211_Ops.del_key’) [enabled by default]
/home/liveuser/sta/os/linux/../../os/linux/cfg80211.c:1381:2: warning: initialization from incompatible pointer type [enabled by default]
/home/liveuser/sta/os/linux/../../os/linux/cfg80211.c:1381:2: warning: (near initialization for ‘CFG80211_Ops.set_default_key’) [enabled by default]
/home/liveuser/sta/os/linux/../../os/linux/cfg80211.c:1388:2: warning: initialization from incompatible pointer type [enabled by default]
/home/liveuser/sta/os/linux/../../os/linux/cfg80211.c:1388:2: warning: (near initialization for ‘CFG80211_Ops.rfkill_poll’) [enabled by default]
/home/liveuser/sta/os/linux/../../os/linux/cfg80211.c: In function ‘CFG80211_Scaning’:
/home/liveuser/sta/os/linux/../../os/linux/cfg80211.c:2062:2: error: too few arguments to function ‘ieee80211_channel_to_frequency’
include/net/cfg80211.h:2110:12: note: declared here
/home/liveuser/sta/os/linux/../../os/linux/cfg80211.c: In function ‘CFG80211_SupBandInit’:
/home/liveuser/sta/os/linux/../../os/linux/cfg80211.c:2594:2: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long unsigned int’ [-Wformat]
/home/liveuser/sta/os/linux/../../os/linux/cfg80211.c:2622:3: error: too few arguments to function ‘ieee80211_channel_to_frequency’
include/net/cfg80211.h:2110:12: note: declared here
make[2]: *** [/home/liveuser/sta/os/linux/../../os/linux/cfg80211.o] Error 1
make[1]: *** [_module_/home/liveuser/sta/os/linux] Error 2
make[1]: Leaving directory `/usr/src/kernels/3.1.0-7.fc16.x86_64'
make: *** [LINUX] Error 2
[liveuser@localhost sta]$ ll /home/liveuser/sta/os/linux/../../os/linux/cfg80211.o
ls: cannot access /home/liveuser/sta/os/linux/../../os/linux/cfg80211.o: No such file or directory

i am getting close but not quite.