I've been reading and learning and have a better understanding of what I'm
looking at but I still can't get this to work. I have a cell phone with USB
cable which appears to be a standard USB serial device. Here is the lsusb
outlut: (bDeviceClass 2 Communications, so it should work with ttyacm right)
Bus 001 Device 002: ID 04e8:6601 Samsung Electronics Co., Ltd.
cannot get string descriptor 1, error = Broken pipe(32)
cannot get string descriptor 2, error = Broken pipe(32)
cannot get string descriptor 3, error = Broken pipe(32)
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.01
bDeviceClass 2 Communications
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 16
idVendor 0x04e8 Samsung Electronics Co., Ltd.
idProduct 0x6601
bcdDevice 0.00
iManufacturer 1
iProduct 2
iSerial 3
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 67
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 2 Communications
bInterfaceSubClass 2 Abstract (modem)
bInterfaceProtocol 1 AT-commands
iInterface 0
unknown descriptor type: 05 24 00 09 01
unknown descriptor type: 05 24 01 03 01
unknown descriptor type: 04 24 02 0f
unknown descriptor type: 05 24 06 00 01
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type none
wMaxPacketSize 16
bInterval 32
cannot get string descriptor 4, error = Broken pipe(32)
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 10
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 4
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x8a EP 10 IN
bmAttributes 2
Transfer Type Bulk
Synch Type none
wMaxPacketSize 64
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x0b EP 11 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type none
wMaxPacketSize 64
bInterval 0
Language IDs: (length=4)
0409 English(US)
Here is the message I get:
hub.c: new USB device 00:1d.0-1, assigned address 2
usb.c: USB device 2 (vend/prod 0x4e8/0x6601) is not claimed by any active
driver.
usbdevfs: USBDEVFS_CONTROL failed dev 2 rqt 128 rq 6 len 67 ret -6
usb.c: registered new driver acm
ttyACM0: USB ACM device
acm.c: v0.21:USB Abstract Control Model driver for USB modems and ISDN
adapters
usbdevfs: USBDEVFS_CONTROL failed dev 2 rqt 128 rq 6 len 256 ret -32
usbdevfs: USBDEVFS_CONTROL failed dev 2 rqt 128 rq 6 len 256 ret -32
usbdevfs: USBDEVFS_CONTROL failed dev 2 rqt 128 rq 6 len 256 ret -32
usbdevfs: USBDEVFS_CONTROL failed dev 2 rqt 128 rq 6 len 256 ret -32
Any Ideas?
Thanks
Eugene
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