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gentoo ，kernel 2.6.33 。。- Linux ACM driver v0.16
- (c) 1999 Vojtech Pavlik <[email]vojtech@suse.cz[/email]>
- Sponsored by SuSE
- ----------------------------------------------------------------------------
- 0. Disclaimer
- ~~~~~~~~~~~~~
- This program is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by the Free
- Software Foundation; either version 2 of the License, or (at your option)
- any later version.
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- more details.
- You should have received a copy of the GNU General Public License along
- with this program; if not, write to the Free Software Foundation, Inc., 59
- Temple Place, Suite 330, Boston, MA 02111-1307 USA
- Should you need to contact me, the author, you can do so either by e-mail
- - mail your message to <[email]vojtech@suse.cz[/email]>, or by paper mail: Vojtech Pavlik,
- Ucitelska 1576, Prague 8, 182 00 Czech Republic
- For your convenience, the GNU General Public License version 2 is included
- in the package: See the file COPYING.
- 1. Usage
- ~~~~~~~~
- The drivers/usb/class/cdc-acm.c drivers works with USB modems and USB ISDN terminal
- adapters that conform to the Universal Serial Bus Communication Device Class
- Abstract Control Model (USB CDC ACM) specification.
- Many modems do, here is a list of those I know of:
- 3Com OfficeConnect 56k
- 3Com Voice FaxModem Pro
- 3Com Sportster
- MultiTech MultiModem 56k
- Zoom 2986L FaxModem
- Compaq 56k FaxModem
- ELSA Microlink 56k
- I know of one ISDN TA that does work with the acm driver:
- 3Com USR ISDN Pro TA
- Some cell phones also connect via USB. I know the following phones work:
- SonyEricsson K800i
- Unfortunately many modems and most ISDN TAs use proprietary interfaces and
- thus won't work with this drivers. Check for ACM compliance before buying.
- To use the modems you need these modules loaded:
- usbcore.ko
- uhci-hcd.ko ohci-hcd.ko or ehci-hcd.ko
- cdc-acm.ko
- After that, the modem[s] should be accessible. You should be able to use
- minicom, ppp and mgetty with them.
- 2. Verifying that it works
- ~~~~~~~~~~~~~~~~~~~~~~~~~~
- The first step would be to check /proc/bus/usb/devices, it should look
- like this:
- T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
- B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0
- D: Ver= 1.00 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
- P: Vendor=0000 ProdID=0000 Rev= 0.00
- S: Product=USB UHCI Root Hub
- S: SerialNumber=6800
- C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA
- I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
- E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=255ms
- T: Bus=01 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 2 Spd=12 MxCh= 0
- D: Ver= 1.00 Cls=02(comm.) Sub=00 Prot=00 MxPS= 8 #Cfgs= 2
- P: Vendor=04c1 ProdID=008f Rev= 2.07
- S: Manufacturer=3Com Inc.
- S: Product=3Com U.S. Robotics Pro ISDN TA
- S: SerialNumber=UFT53A49BVT7
- C: #Ifs= 1 Cfg#= 1 Atr=60 MxPwr= 0mA
- I: If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=acm
- E: Ad=85(I) Atr=02(Bulk) MxPS= 64 Ivl= 0ms
- E: Ad=04(O) Atr=02(Bulk) MxPS= 64 Ivl= 0ms
- E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=128ms
- C:* #Ifs= 2 Cfg#= 2 Atr=60 MxPwr= 0mA
- I: If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=02 Prot=01 Driver=acm
- E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=128ms
- I: If#= 1 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=acm
- E: Ad=85(I) Atr=02(Bulk) MxPS= 64 Ivl= 0ms
- E: Ad=04(O) Atr=02(Bulk) MxPS= 64 Ivl= 0ms
- The presence of these three lines (and the Cls= 'comm' and 'data' classes)
- is important, it means it's an ACM device. The Driver=acm means the acm
- driver is used for the device. If you see only Cls=ff(vend.) then you're out
- of luck, you have a device with vendor specific-interface.
- D: Ver= 1.00 Cls=02(comm.) Sub=00 Prot=00 MxPS= 8 #Cfgs= 2
- I: If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=02 Prot=01 Driver=acm
- I: If#= 1 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=acm
- In the system log you should see:
- usb.c: USB new device connect, assigned device number 2
- usb.c: kmalloc IF c7691fa0, numif 1
- usb.c: kmalloc IF c7b5f3e0, numif 2
- usb.c: skipped 4 class/vendor specific interface descriptors
- usb.c: new device strings: Mfr=1, Product=2, SerialNumber=3
- usb.c: USB device number 2 default language ID 0x409
- Manufacturer: 3Com Inc.
- Product: 3Com U.S. Robotics Pro ISDN TA
- SerialNumber: UFT53A49BVT7
- acm.c: probing config 1
- acm.c: probing config 2
- ttyACM0: USB ACM device
- acm.c: acm_control_msg: rq: 0x22 val: 0x0 len: 0x0 result: 0
- acm.c: acm_control_msg: rq: 0x20 val: 0x0 len: 0x7 result: 7
- usb.c: acm driver claimed interface c7b5f3e0
- usb.c: acm driver claimed interface c7b5f3f8
- usb.c: acm driver claimed interface c7691fa0
- If all this seems to be OK, fire up minicom and set it to talk to the ttyACM
- device and try typing 'at'. If it responds with 'OK', then everything is
- working.
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发表于 2010-04-29 13:20
