gnupic: Re: [gnupic] Follow-up question to the thread about Ben's port of Brad's Lab2 to gpasm
Subject:
RE: [gnupic] Follow-up question to the thread about Ben's port of Brad's Lab2 to gpasm
From:
"Chen Xiao Fan" ####@####.####
Date:
4 Jan 2006 00:48:41 +0000
Message-Id: <7D4AB72251D4D949AB2732ABEABDA54F12FF71@PFSG-MX1.ap.p-f.biz>
> -----Original Message-----
> From: Nicholas Robinson
> Sent: Wednesday, January 04, 2006 8:17 AM
> Anyone fluent in usbmon?
>
> Nick
I guess Linux-usb-users is a good place to ask the
usb related questions. Alan Stern and some others
are very helpful there.
Another thing is to enable the usb debug option in your
kernel rebuilding. In that case, dmesg produces much more
information and not as cryptic as usbmon.
By the way, a lot of the people in Microchip Forum USB
section solve their problem by adding a 470nF capacitor
to the Vusb pin (220nF to 1uF should be okay). Just in
case you forget to do that.
You can try also connect it to Windows to see if it is
only a Linux problem.
Regards,
Xiaofan
PS: The following is the sample output from dmesg after
enabling USB debug option.
...
[17179788.408000] usb 1-3: new full speed USB device using ohci_hcd
and address 39
[17179788.480000] ohci_hcd 0000:00:02.0: GetStatus roothub.portstatus
[2] = 0x00 100103 PRSC PPS PES CCS
[17179788.556000] usb 1-3: ep0 maxpacket = 8
[17179788.572000] usb 1-3: skipped 1 descriptor after interface
[17179788.580000] usb 1-3: default language 0x0409
[17179788.588000] usb 1-3: new device strings: Mfr=1, Product=2, SerialNumber=3
[17179788.588000] usb 1-3: Product: PICkit 2 Microcontroller Programmer
[17179788.588000] usb 1-3: Manufacturer: Microchip Technology Inc.
[17179788.588000] usb 1-3: SerialNumber: PIC18F2550
[17179788.588000] usb 1-3: hotplug
[17179788.588000] usb 1-3: configuration #1 chosen from 2 choices
[17179788.596000] usb 1-3: adding 1-3:1.0 (config #1, interface 0)
[17179788.596000] usb 1-3:1.0: hotplug
[17179788.600000] usbhid 1-3:1.0: usb_probe_interface
[17179788.600000] usbhid 1-3:1.0: usb_probe_interface - got id
[17179788.612000] drivers/usb/core/file.c: looking for a minor, starting at 96
[17179788.612000] hiddev96: USB HID v0.01 Device [Microchip Technology
Inc. PICk it 2 Microcontroller Programmer] on usb-0000:00:02.0-3
[17179788.612000] hub 1-0:1.0: state 5 ports 4 chg 0000 evt 0008
[17179788.824000] usb 1-3: usbfs: interface 0 claimed by usbhid while
'pyk' sets config #1
[17179788.824000] drivers/usb/core/file.c: removing 96 minor
...
