Re: Question about Freebsd driver
I have a question about Freebsd driver. If we want to support some options in driver(like speed and duplex mode setting) , user can use this option to change driver configurations. I am not sure whether freebsd driver support driver parameter or something else. Can you give me some suggestions? Thanks!! From the question, I infer that you are referring to Ethernet device drivers. In the FreeBSD model, devices fit into one or more of a set of classes. Each class has an established, device-independant mechanism for controlling driver parameters. In the case of Ethernet drivers, parameters are controlled via the driver's ioctl interface. You should be able to find good examples of this in the source for other drivers similar to your own. If you have more specific questions, please feel free to ask them here. Regards, Mike -- ... every activity meets with opposition, everyone who acts has his rivals and unfortunately opponents also. But not because people want to be opponents, rather because the tasks and relationships force people to take different points of view. [Dr. Fritz Todt] V I C T O R Y N O T V E N G E A N C E To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-current in the body of the message
Question about Freebsd driver
Dear Sir: I have a question about Freebsd driver. If we want to support some options in driver(like speed and duplex mode setting) , user can use this option to change driver configurations. I am not sure whether freebsd driver support driver parameter or something else. Can you give me some suggestions? Thanks!! -- Yiping Chen VIA Technologies, Inc. LAN Software Dept. 533 Chung Cheng Road 8F Hsin Tien, Taipei Taiwan TEL : 886-2-22185452 EXT.7512 FAX : 886-2-22185453 E-mail : [EMAIL PROTECTED] To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-current in the body of the message
Re: Question about Freebsd driver
Yiping Chen wrote: Dear Sir: I have a question about Freebsd driver. If we want to support some options in driver(like speed and duplex mode setting) , user can use this option to change driver configurations. I am not sure whether freebsd driver support driver parameter or something else. Can you give me some suggestions? Thanks!! I'm not sure if current is the correct mailing list for asking questions. Anyway, if you're refering to network device drivers, see man ifconfig (especialle media and mediaopt) man fxp man txp [...] For a list of devices, see /usr/src/sys/i386/conf/LINT Regards, Holger Kipp -- Holger Kipp, Dipl.-Math., Systemadministrator | alogis AG Fon: +49 (0)30 / 43 65 8 - 114 | Berliner Strasse 26 Fax: +49 (0)30 / 43 65 8 - 214 | D-13507 Berlin Tegel email: [EMAIL PROTECTED] | http://www.alogis.com To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-current in the body of the message
Re: Question about Freebsd driver
Yiping Chen wrote: Dear Sir: I have a question about Freebsd driver. If we want to support some options in driver(like speed and duplex mode setting) , user can use this option to change driver configurations. I am not sure whether freebsd driver support driver parameter or something else. Can you give me some suggestions? Thanks!! For LAN drivers, you can set a large number of predefined options, such as spped and duplex, as well as vendor specific options. The command you are looking for is ifconfig. To find the source code to any FreeBSD command, you should type which command at a root prompt. For example, if the command you were looking for was foo or fee: # which foo /usr/bin/foo # cd /usr/src/usr.bin/foo # ls foo.c # which fee /sbin/fee # cd /usr/src/sbin/fee # ls fee .c The ifconfig command is odd in that it gathers up its arguments, and then ioctl's down on a socket descriptor. This is handled by code in the /sys/net directory, and then in the drivers itself. It's best if you start with code in a specific driver. As a general rule, for things like duplex and speed, you will want to write your driver to autonegotiate, if the hardware can do that, since that's one less thing the user has to worry about. The use of duplex and speed settings us usually _ONLY_ to defeat the use of autonegotiation, and force user settings. Many cards support doing this (for example, when using FreeBSD as a router or a hub). Hope this helps. -- Terry To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-current in the body of the message
