Hi, Am 30.03.2015 um 12:08 schrieb Johan Hovold <jo...@kernel.org>:
> On Mon, Mar 30, 2015 at 11:32:39AM +0200, Dr. H. Nikolaus Schaller wrote: >> Hi Johan, >> >> Am 30.03.2015 um 09:45 schrieb Johan Hovold <jo...@kernel.org>: >> >>> On Sat, Mar 28, 2015 at 02:37:57PM +0100, Marek Belisko wrote: >>>> From: "H. Nikolaus Schaller" <h...@goldelico.com> >>>> >>>> While trying to test the Pyra GSM/GPS/3G module I had reconfigured >>>> the USB interface by mistake and therefore needed to run a different >>>> USB driver than CSC-ACM. It turned out that I need the "usbserial" driver. >>> >>> CDC-ACM >> >> oh, thanks. There is always at least one more typo in any document… >> >>> >>>> This file is an official description how to use it: >>>> Documentation/usb/usb-serial.txt >>>> >>>> But it is outdated. The parameters vendor= and product= are no longer >>>> available since ca. 3.12 which means that documentation is lagging behind >>>> quite some time. >>> >>> This is simply not true. The vendor and module parameters are still >>> there for usbserial (i.e. the generic driver). >>> >>> Would you mind updating this patch to document the sysfs-method as an >>> alternative instead? Using sysfs is preferred as that functionality can >>> be used with any usb-serial driver and the drivers can also be compiled >>> in. >> >> Hm. For me it did not work as described and therefore I searched for >> and found the solution cited below, which appears to confirm that it does >> not work any more. Only with these hints to use the /sys approach I >> could make it working immediately. >> >> Therefore I assumed that the documentation is outdated. >> >> But it might also be a hidden bug with the parameter passing. >> I had tested on 4.0-rc3. >> >> I can try a little more but it might be waste of time to find out why the old >> does not work, if there is a preferred method now. > > Please do try to figure out if it doesn't work as we have not deprecated > this functionality yet. It should still work. Good news: I have tried again (this time with 4.0-rc5) and was successful. I have no clue why it did not work with my tests with 4.0-rc3. Here is the log: > gta04 login: root > Password: > Last login: Thu Apr 2 14:06:13 UTC 2015 on ttyO2 > Linux gta04 4.0.0-rc5-gta04+ #1022 SMP Mon Mar 23 08:13:29 CET 2015 armv7l > > The programs included with the Debian GNU/Linux system are free software; > the exact distribution terms for each program are described in the > individual files in /usr/share/doc/*/copyright. > > Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent > permitted by applicable law. > root@gta04:~# lsusb > Bus 001 Device 002: ID 0424:3503 Standard Microsystems Corp. > Bus 001 Device 003: ID 0424:9730 Standard Microsystems Corp. > Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > root@gta04:~# rfkill unblock wwan > [ 40.443892] wwan_on_off_rfkill_set_block: blocked: 0 > [ 40.449109] modem: set_power 0 > [ 40.452318] state 1 > [ 40.454687] modem: send impulse > [ 41.174775] modem: done > root@gta04:~# [ 42.874901] usb 1-2.2: new high-speed USB device number 4 > using ehci-omap > [ 43.008009] usb 1-2.2: New USB device found, idVendor=1e2d, idProduct=0053 > [ 43.015211] usb 1-2.2: New USB device strings: Mfr=3, Product=2, > SerialNumber=0 > [ 43.022859] usb 1-2.2: Product: PH8 > [ 43.026525] usb 1-2.2: Manufacturer: Cinterion > > root@gta04:~# lsusb > Bus 001 Device 002: ID 0424:3503 Standard Microsystems Corp. > Bus 001 Device 003: ID 0424:9730 Standard Microsystems Corp. > Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > Bus 001 Device 004: ID 1e2d:0053 > root@gta04:~# insmod > /lib/modules/4.0.0-rc5-gta04+/kernel/drivers/usb/serial/usbserial.ko > vendor=0x1e2d product=0x0053 > [ 172.699426] usbcore: registered new interface driver usbserial > [ 172.705714] usbcore: registered new interface driver usbserial_generic > [ 172.715819] usbserial: USB Serial support registered for generic > [ 172.722237] usbserial_generic 1-2.2:1.0: The "generic" usb-serial driver > is only for testing and one-off prototypes. > [ 172.733328] usbserial_generic 1-2.2:1.0: Tell linux-...@vger.kernel.org to > add your device to a proper driver. > [ 172.743848] usbserial_generic 1-2.2:1.0: generic converter detected > [ 172.754681] usb 1-2.2: generic converter now attached to ttyUSB0 > [ 172.761543] usbserial_generic 1-2.2:1.1: The "generic" usb-serial driver > is only for testing and one-off prototypes. > [ 172.772640] usbserial_generic 1-2.2:1.1: Tell linux-...@vger.kernel.org to > add your device to a proper driver. > [ 172.783154] usbserial_generic 1-2.2:1.1: generic converter detected > [ 172.790765] usb 1-2.2: generic converter now attached to ttyUSB1 > [ 172.797235] usbserial_generic 1-2.2:1.2: The "generic" usb-serial driver > is only for testing and one-off prototypes. > [ 172.808296] usbserial_generic 1-2.2:1.2: Tell linux-...@vger.kernel.org to > add your device to a proper driver. > [ 172.818797] usbserial_generic 1-2.2:1.2: generic converter detected > [ 172.826135] usb 1-2.2: generic converter now attached to ttyUSB2 > [ 172.832582] usbserial_generic 1-2.2:1.3: The "generic" usb-serial driver > is only for testing and one-off prototypes. > [ 172.843642] usbserial_generic 1-2.2:1.3: Tell linux-...@vger.kernel.org to > add your device to a proper driver. > [ 172.854159] usbserial_generic 1-2.2:1.3: generic converter detected > [ 172.861580] usb 1-2.2: generic converter now attached to ttyUSB3 > [ 172.868018] usbserial_generic 1-2.2:1.4: The "generic" usb-serial driver > is only for testing and one-off prototypes. > [ 172.879081] usbserial_generic 1-2.2:1.4: Tell linux-...@vger.kernel.org to > add your device to a proper driver. > [ 172.889582] usbserial_generic 1-2.2:1.4: generic converter detected > [ 172.896804] usb 1-2.2: generic converter now attached to ttyUSB4 > root@gta04:~# ./femtocom /dev/ttyUSB3 > > ^SYSSTART > ati > ati > > Cinterion > PHS8-E > REVISION 03.001 > > OK > So we will edit the patch to describe * that the sysfs method is in addition, and preferred * and works even if driver is compiled into the kernel (which I haven’t tested in my setup but assume it works as well) Ok? Thanks for comments, Nikolaus -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
