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I need to modify a kernel module located in Linux 3.2.0. Within drivers/staging/bcm, the driver should support the device id 198F:015E, instead in the InterfaceInit.h file, it was mentioned as 198F:15E, I changed that to 015E but still, after successful compilation, the new device id's are not being picked up by the kernel.

Here is the output of modinfo:

filename:       <somewhere/>bcm_wimax.ko
license:        GPL
version:        5.2.45
description:    Beceem Communications Inc. WiMAX driver
srcversion:     D6016018ABCFFD16AF31D22
alias:          usb:v19D2p0007d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v0489pE017d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v19D2p0132d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v198FpBCCDd*dc*dsc*dp*ic*isc*ip*
alias:          usb:v198Fp0220d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v198Fp0210d*dc*dsc*dp*ic*isc*ip*
alias:          usb:v198Fp0300d*dc*dsc*dp*ic*isc*ip*
depends:        
vermagic:       3.2.0-26-generic-pae SMP mod_unload modversions 686 
parm:           debug:Debug level (0=none,...,16=all) (uint)

My 198F:015E is still not appearing! Strangely after beginning the compilation, I can see a file called bcm_wimax.mod.c getting generated inside the module source folder. Inside that, I found out the modinfo alias thing. Which looks like:

 #include <linux/module.h>
 #include <linux/vermagic.h>
 #include <linux/compiler.h>

 MODULE_INFO(vermagic, VERMAGIC_STRING);

 struct module __this_module
 __attribute__((section(".gnu.linkonce.this_module"))) = {
  .name = KBUILD_MODNAME,
  .init = init_module,
 #ifdef CONFIG_MODULE_UNLOAD
  .exit = cleanup_module,
 #endif
  .arch = MODULE_ARCH_INIT,
 };

 MODULE_INFO(staging, "Y");

 static const struct modversion_info ____versions[]
 __used
 __attribute__((section("__versions"))) = {
 };

 static const char __module_depends[]
 __used
 __attribute__((section(".modinfo"))) =
 "depends=";

 MODULE_ALIAS("usb:v198Fp0300d*dc*dsc*dp*ic*isc*ip*");
 MODULE_ALIAS("usb:v198Fp0210d*dc*dsc*dp*ic*isc*ip*");
 MODULE_ALIAS("usb:v198Fp0220d*dc*dsc*dp*ic*isc*ip*");
 MODULE_ALIAS("usb:v198FpBCCDd*dc*dsc*dp*ic*isc*ip*");
 MODULE_ALIAS("usb:v19D2p0132d*dc*dsc*dp*ic*isc*ip*");
 MODULE_ALIAS("usb:v0489pE017d*dc*dsc*dp*ic*isc*ip*");
 MODULE_ALIAS("usb:v19D2p0007d*dc*dsc*dp*ic*isc*ip*");

 MODULE_INFO(srcversion, "D6016018ABCFFD16AF31D22");

But I tried to modify bcm_wimax.mod.c but after compiling, the file got reverted back to it's original condition, removing my edits. How can I get to add my 198f:015e to the module alias section?

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1 回答 1

2

198F:015E is the same as 198F:15E

Looking at the kernel source it seems you are interested in BCM_USB_PRODUCT_ID_SYM, but the device is not present in InterfaceUsbtable drivers/staging/bcm/InterfaceInit.c.

You can add it and hope the driver support that device as well.

于 2012-08-05T08:26:31.750 回答