Onko kukaan saanut luettua Linuxissa dataa sarjaportin kautta launchpadista? Eli kun tökkään launchpadin kiinni koneeseen niin lsusb näyttää sen tunnistuneen oikein ja ttyACM0 laitetiedosto ilmestyy /dev kansioon, mutta kun yritän yhdistää siihen:
antti@laptop:~$ stty 2400 -F /dev/ttyACM0
stty: /dev/ttyACM0: Input/output error
Launchpadissä pyörii se oletussofta minkä pitäisi tunkea lämpötiladataa sarjaportista, eli sillä puolella kaikki on ok. Olen kokeillut Ubuntu 10.10:ssa ja Archissa joissa kummassakin sama ongelma.
dmesg kertoo seuraavaa:
[ 252.110171] usb 3-2: new full speed USB device using ohci_hcd and address 3
[ 262.382326] /build/buildd/linux-2.6.35/drivers/hid/usbhid/hid-core.c: usb_submit_urb(ctrl) failed
[ 262.382422] generic-usb 0003:0451:F432.0002: timeout initializing reports
[ 262.383494] generic-usb 0003:0451:F432.0002: hiddev96,hidraw1: USB HID v1.01 Device [Texas Instruments Texas Instruments MSP-FET430UIF] on usb-0000:00:12.0-2/input1
[ 262.384138] cdc_acm 3-2:1.0: This device cannot do calls on its own. It is not a modem.
[ 262.384161] cdc_acm 3-2:1.0: No union descriptor, testing for castrated device
[ 262.384582] cdc_acm 3-2:1.0: ttyACM0: USB ACM device
[ 262.392230] usbcore: registered new interface driver cdc_acm
[ 262.392230] cdc_acm: v0.26:USB Abstract Control Model driver for USB modems and ISDN adapters
[ 290.251552] tty_port_close_start: tty->count = 1 port count = 0.
lsusb -v -d 0451:f432
Bus 003 Device 003: ID 0451:f432 Texas Instruments, Inc. eZ430 Development Tool
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x0451 Texas Instruments, Inc.
idProduct 0xf432 eZ430 Development Tool
bcdDevice 1.00
iManufacturer 1
iProduct 2
iSerial 3
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 85
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 3
bInterfaceClass 2 Communications
bInterfaceSubClass 2 Abstract (modem)
bInterfaceProtocol 1 AT-commands (v.25ter)
iInterface 5
CDC Header:
bcdCDC 1.10
CDC Call Management:
bmCapabilities 0x00
bDataInterface 0
CDC ACM:
bmCapabilities 0x02
line coding and serial state
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 255
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 255
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 255
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 0 No Subclass
bInterfaceProtocol 0 None
iInterface 4
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.01
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 694
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 1
cannot read device status, Connection timed out (110)
