Re: Loop detected - calling function from different modules
hi Stephen, you can check these: http://bcm43xx.berlios.de/ http://madwifi.org/ R /frank From: Stephen Hemminger <[EMAIL PROTECTED]> To: "Frank Schneider" <[EMAIL PROTECTED]> CC: netdev@vger.kernel.org Subject: Re: Loop detected - calling function from different modules Date: Wed, 30 Aug 2006 14:26:07 -0700 On Wed, 30 Aug 2006 22:58:17 +0200 "Frank Schneider" <[EMAIL PROTECTED]> wrote: > > hi all, > > I am writing/customizing a network(wlan pc card) device driver for Linux > kernel 2.6.12 > Think about I have two modules e.g. ath_pci and wlan module. > I can call a function from a .c file which is implemented in a .c file in > wlan module by using EXPORT_SYMBOL macro.. > > and i need to do same in reverse way, i.e. call a function from wlan module > that is implemented in ath_pci module. > > I did the same way and its making but when I do make install its showing > following error: > > WARNING: Loop detected: /lib/modules/2.6.12/net/ath_pci.ko needs wlan.ko > which needs ath_pci.ko again! > > Please anybody tell how can I do this, any clue , please ? > > thanx in advance > > n.b. this question may consider as very naive since I am not good yet in > kernel hacking.. > > regards, > /Frank Where are these open source drivers so the wireless developers can help? -- Stephen Hemminger <[EMAIL PROTECTED]> _ FREE pop-up blocking with the new MSN Toolbar - get it now! http://toolbar.msn.click-url.com/go/onm00200415ave/direct/01/ -- VGER BF report: U 0.864812 - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: Loop detected - calling function from different modules
Dear Johannes, I just got an idea, may be not usefull, but I am gonna try: If I assign a function which is implemented in ath_pci module to hard_start_xmit and do my little work and call the actual function to xmit data frame in wlan module. that I can do.. accordingly I will pass the concern structure sk_buff that contain data frame.. that will serve my purpose as well as normal data frame is suppose to send out from the device, AP. can I do it ? I will let you know, if I success... /Frank From: Johannes Berg <[EMAIL PROTECTED]> > Any suggestions to do that please ? d80211 has a hardware definition struct that is registered by the driver and contains a callback that is called for each frame. This is the direction you should take as well: hard_start_xmit (generic code) calls hardware_xmit (your module code, e.g. in a struct wlan_device) johannes - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html _ Express yourself instantly with MSN Messenger! Download today it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/ - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: Loop detected - calling function from different modules
Dear Johannes,
To port ath_pci to wlan(d80211) module and make it one module might be a
possible solution. But you know, ath_pci has some dependency and some binary
crap(HAL)
More over, I need only an signal (e.g. by calling a funciton) in the ath_pci
module when a data frame is sending out from the card(as AP)
We know struct net_device has a member pointer to a method called
hard_start_xmit that initiates the transmission through the device.
Wlan module already assigned a function ("ieee80211_hardstart" ) to this
pointer
hard_start_xmit. It uses dev_queue_xmit() to transmit outgoing data frame
from
AP.
Is it possible to assign another function in different module, e.g.
ath_pci I need to call this function when transmit data frame, but in
practice,
this function will not send any data frame, e.g. wont use dev_queue_xmit.
Or is any other way to get an indication in ath_pci module that an outgoing
data
frame is gonna send out?
Any suggestions to do that please ?
regards,
Frank
From: Johannes Berg <[EMAIL PROTECTED]>
On Wed, 2006-08-30 at 22:58 +0200, Frank Schneider wrote:
> and i need to do same in reverse way, i.e. call a function from wlan
module
> that is implemented in ath_pci module.
No, you don't. Period. Either wlan provides services to ath_pci, or they
should be one module. Besides, why don't you port atheros drivers to
d80211 instead? And how about showing code? :)
johannes
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Loop detected - calling function from different modules
hi all, I am writing/customizing a network(wlan pc card) device driver for Linux kernel 2.6.12 Think about I have two modules e.g. ath_pci and wlan module. I can call a function from a .c file which is implemented in a .c file in wlan module by using EXPORT_SYMBOL macro.. and i need to do same in reverse way, i.e. call a function from wlan module that is implemented in ath_pci module. I did the same way and its making but when I do make install its showing following error: WARNING: Loop detected: /lib/modules/2.6.12/net/ath_pci.ko needs wlan.ko which needs ath_pci.ko again! Please anybody tell how can I do this, any clue , please ? thanx in advance n.b. this question may consider as very naive since I am not good yet in kernel hacking.. regards, /Frank _ Express yourself instantly with MSN Messenger! Download today it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/ - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
dealing with "hard_start_xmit " of net_device
hi all, I am customizing a linux driver code of WLAN card as Access Point on Linux kernel 2.6.12 to work with. We know struct net_device has a member pointer to a method called hard_start_xmit that initiates the transmission through the device. Data should contain sk_buff structure. For that particular device, the whole driver code is consists of some modules. Among those one module already assigned a function to this pointer "hard_start_xmit". I already tested its working well to transmit outgoing data frame from AP. My question is, how can I assign another function in different module. I need to call this function when transmit data frame, but in practice, this function will not send any data frame, e.g. wont use dev_queue_xmit. You can assume, when something to transmit it will call two functions in two modules of same driver Any suggestions to do that please ? regards, / Frank _ Express yourself instantly with MSN Messenger! Download today it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/ - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
