Download bluestacks for macbook pro. Great with the U232-P9 driver and Windows 10. U232-P9 CONVERTER DRIVERS FOR WINDOWS 7 - downloaded 12 times, uploaded on, receiving a 4.89/5 rating by 13 users. MCT, Headquartered in Taipei, Taiwan, was established in 1997. El capitan usb bootable. Rainmeter on mac. Sep usb 232 converter u 232-p 9 driv Anyone know where I can get the U 232-P 9 2.4 RS232/USB converter, Win 10 drivers.
2010-10-20 06:21:06 UTC
I have a purple 'U232-P9(2.4)' USB to Serial adapter. The distributor
I bought it from made a big deal about the purple color distinguishing
this from other similar adapters.
This adapter works with kernel 2.6.34.7 and breaks with kernel 2.6.35,
both mainline for Ubuntu from:
http://kernel.ubuntu.com/~kernel-ppa/mainline/
Steps to reproduce the issue:
$ uname -r
2.6.35-020635-generic
$ sudo modprobe usbserial debug=1
$ sudo modprobe mct_u232 debug=1
$ dmesg
[ 612.946015] usbcore: registered new interface driver usbserial
[ 612.946020] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the open usb serial operation with the generic one.
[ 612.946023] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write usb serial operation with the generic one.
[ 612.946026] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the close usb serial operation with the generic one.
[ 612.946029] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write_room usb serial operation with the generic
one.
[ 612.946032] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the chars_in_buffer usb serial operation with the
generic one.
[ 612.946035] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the read_bulk_callback usb serial operation with the
generic one.
[ 612.946038] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write_bulk_callback usb serial operation with the
generic one.
[ 612.946041] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the process_read_urb usb serial operation with the
generic one.
[ 612.946044] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the prepare_write_buffer usb serial operation with the
generic one.
[ 612.946062] USB Serial support registered for generic
[ 612.946546] usbcore: registered new interface driver usbserial_generic
[ 612.946549] usbserial: USB Serial Driver core
[ 618.868804] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write usb serial operation with the generic one.
[ 618.868809] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write_room usb serial operation with the generic
one.
[ 618.868812] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the chars_in_buffer usb serial operation with the
generic one.
[ 618.868815] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the read_bulk_callback usb serial operation with the
generic one.
[ 618.868818] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write_bulk_callback usb serial operation with the
generic one.
[ 618.868821] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the disconnect usb serial operation with the generic
one.
[ 618.868824] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the process_read_urb usb serial operation with the
generic one.
[ 618.868827] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the prepare_write_buffer usb serial operation with the
generic one.
[ 618.868850] USB Serial support registered for MCT U232
[ 618.868887] usbcore: registered new interface driver mct_u232
[ 618.868889] mct_u232: z2.1:Magic Control Technology USB-RS232
converter driver
# insert U232-P9 adapter
$ dmesg
[ 655.873178] usb 6-2: new full speed USB device using uhci_hcd and address 4
[ 656.538058] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
static descriptor matches
[ 656.538069] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
found interrupt in on endpoint 0
[ 656.538077] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
found interrupt in on endpoint 1
[ 656.538084] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
found bulk out on endpoint 2
[ 656.538092] mct_u232 6-2:1.0: MCT U232 converter detected
[ 656.538098] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
usb_serial_probe - setting up 2 port structures for this device
[ 656.538119] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
get_free_serial 1
[ 656.538127] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
get_free_serial - minor base = 0
[ 656.538136] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
usb_serial_probe - registering ttyUSB0
[ 656.538309] usb 6-2: MCT U232 converter now attached to ttyUSB0
# Run 'arduino' Java-based IDE which accesses serial port
$ dmesg
[ 711.975992] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_install
[ 711.976044] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_open - port 0
[ 711.976050] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
mct_u232_open port 0
[ 711.977915] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_modem_ctrl: state=0x6 > mcr=0xb
[ 711.978911] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_line_ctrl: 0x3
[ 711.979910] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
get_modem_stat: 0x0
[ 711.979915] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
msr_to_state: msr=0x0 > state=0x6
[ 711.980909] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_modem_ctrl: state=0x6 > mcr=0xb
[ 711.980925] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 711.980939] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 711.980945] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5402
[ 711.980952] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_set_termios - port 0
[ 711.981904] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_baud_rate: value: 0x2580, divisor: 0x8
[ 711.982908] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_baud_rate: send second control message, data = 00
[ 711.984899] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_line_ctrl: 0x3
[ 711.984914] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 711.984933] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 711.984943] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5402
[ 711.984953] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_set_termios - port 0
[ 711.985897] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_baud_rate: value: 0x2580, divisor: 0x8
[ 711.986915] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_baud_rate: send second control message, data = 00
[ 711.988898] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_line_ctrl: 0x3
[ 711.988913] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 711.988997] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_close - port 0
[ 711.989034] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_chars_in_buffer - port 0
[ 711.989045] /home/kernel-ppa/COD/linux/drivers/usb/serial/generic.c:
usb_serial_generic_chars_in_buffer - port 0
[ 711.989056] /home/kernel-ppa/COD/linux/drivers/usb/serial/generic.c:
usb_serial_generic_chars_in_buffer - returns 0
[ 711.989910] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_modem_ctrl: state=0x0 > mcr=0x8
[ 711.989920] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
mct_u232_close port 0
[ 711.989927] /home/kernel-ppa/COD/linux/drivers/usb/serial/generic.c:
usb_serial_generic_close - port 0
[ 711.989935] /home/kernel-ppa/COD/linux/drivers/usb/serial/generic.c:
generic_cleanup - port 0
[ 711.990884] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
mct_u232_read_int_callback - urb shutting down with status: -2
[ 711.990924] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_cleanup - port 0
[ 712.001901] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_install
[ 712.001924] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_open - port 0
[ 712.001933] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
mct_u232_open port 0
[ 712.003901] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_modem_ctrl: state=0x6 > mcr=0xb
[ 712.004907] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_line_ctrl: 0x3
[ 712.005890] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
get_modem_stat: 0x0
[ 712.005898] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
msr_to_state: msr=0x0 > state=0x6
[ 712.005908] mct_u232 ttyUSB0: usb_submit_urb(read bulk) failed pipe
0x40410480 err -22
[ 712.005919] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_close - port 0
[ 712.006883] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_modem_ctrl: state=0x0 > mcr=0x8
[ 712.006914] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_cleanup - port 0
And so ttyUSB0 is not usable.
What happens when it is working:
$ uname -r
2.6.34-02063407-generic
$ sudo modprobe usbserial debug=1
$ sudo modprobe mct_u232 debug=1
$ dmesg
[ 801.416561] usbcore: registered new interface driver usbserial
[ 801.416565] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the open usb serial operation with the generic one.
[ 801.416568] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write usb serial operation with the generic one.
[ 801.416571] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the close usb serial operation with the generic one.
[ 801.416574] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write_room usb serial operation with the generic
one.
[ 801.416577] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the chars_in_buffer usb serial operation with the
generic one.
[ 801.416580] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the read_bulk_callback usb serial operation with the
generic one.
[ 801.416582] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write_bulk_callback usb serial operation with the
generic one.
[ 801.416596] USB Serial support registered for generic
[ 801.416635] usbcore: registered new interface driver usbserial_generic
[ 801.416637] usbserial: USB Serial Driver core
[ 812.468040] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write usb serial operation with the generic one.
[ 812.468045] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write_room usb serial operation with the generic
one.
[ 812.468048] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the chars_in_buffer usb serial operation with the
generic one.
[ 812.468051] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the read_bulk_callback usb serial operation with the
generic one.
[ 812.468054] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write_bulk_callback usb serial operation with the
generic one.
[ 812.468057] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the disconnect usb serial operation with the generic
one.
[ 812.468080] USB Serial support registered for MCT U232
[ 812.468113] usbcore: registered new interface driver mct_u232
[ 812.468115] mct_u232: z2.1:Magic Control Technology USB-RS232
converter driver
# insert U232-P9 adapter
$ dmesg
[ 905.373173] usb 6-2: new full speed USB device using uhci_hcd and address 4
[ 906.140558] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
static descriptor matches
[ 906.140568] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
found interrupt in on endpoint 0
[ 906.140575] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
found interrupt in on endpoint 1
[ 906.140582] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
found bulk out on endpoint 2
[ 906.140589] mct_u232 6-2:1.0: MCT U232 converter detected
[ 906.140596] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
usb_serial_probe - setting up 2 port structures for this device
[ 906.140614] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
get_free_serial 1
[ 906.140621] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
get_free_serial - minor base = 0
[ 906.140629] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
usb_serial_probe - registering ttyUSB0
[ 906.140771] usb 6-2: MCT U232 converter now attached to ttyUSB0
# Run 'arduino' Java-based IDE which accesses serial port
$ dmesg
[ 974.831471] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_install
[ 974.831485] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_open - port 0
[ 974.836101] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.836122] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.836128] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5402
[ 974.836135] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_set_termios - port 0
[ 974.840156] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.840181] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.840190] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5402
[ 974.840199] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_set_termios - port 0
[ 974.844091] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.844187] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_close - port 0
[ 974.844193] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_chars_in_buffer - port 0
[ 974.844199] /home/kernel-ppa/COD/linux/drivers/usb/serial/generic.c:
usb_serial_generic_chars_in_buffer - port 0
[ 974.844204] /home/kernel-ppa/COD/linux/drivers/usb/serial/generic.c:
usb_serial_generic_chars_in_buffer - returns 0
[ 974.847107] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_cleanup - port 0
[ 974.858826] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_install
[ 974.858838] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_open - port 0
[ 974.863118] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.863128] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.863134] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5402
[ 974.863140] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_set_termios - port 0
[ 974.867114] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.867124] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.867130] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5402
[ 974.867136] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_set_termios - port 0
[ 974.871122] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.871210] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_close - port 0
[ 974.871219] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_chars_in_buffer - port 0
[ 974.871227] /home/kernel-ppa/COD/linux/drivers/usb/serial/generic.c:
usb_serial_generic_chars_in_buffer - port 0
[ 974.871235] /home/kernel-ppa/COD/linux/drivers/usb/serial/generic.c:
usb_serial_generic_chars_in_buffer - returns 0
[ 974.874136] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_cleanup - port 0
Having trouble to find which patch introduced this issue, and what the
problem is exactly. It looks like there are so many updates to USB
from 2.6.34 into 2.6.35 that I'm beyond my reach.
Eric
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I bought it from made a big deal about the purple color distinguishing
this from other similar adapters.
This adapter works with kernel 2.6.34.7 and breaks with kernel 2.6.35,
both mainline for Ubuntu from:
http://kernel.ubuntu.com/~kernel-ppa/mainline/
Steps to reproduce the issue:
$ uname -r
2.6.35-020635-generic
$ sudo modprobe usbserial debug=1
$ sudo modprobe mct_u232 debug=1
$ dmesg
[ 612.946015] usbcore: registered new interface driver usbserial
[ 612.946020] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the open usb serial operation with the generic one.
[ 612.946023] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write usb serial operation with the generic one.
[ 612.946026] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the close usb serial operation with the generic one.
[ 612.946029] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write_room usb serial operation with the generic
one.
[ 612.946032] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the chars_in_buffer usb serial operation with the
generic one.
[ 612.946035] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the read_bulk_callback usb serial operation with the
generic one.
[ 612.946038] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write_bulk_callback usb serial operation with the
generic one.
[ 612.946041] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the process_read_urb usb serial operation with the
generic one.
[ 612.946044] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the prepare_write_buffer usb serial operation with the
generic one.
[ 612.946062] USB Serial support registered for generic
[ 612.946546] usbcore: registered new interface driver usbserial_generic
[ 612.946549] usbserial: USB Serial Driver core
[ 618.868804] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write usb serial operation with the generic one.
[ 618.868809] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write_room usb serial operation with the generic
one.
[ 618.868812] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the chars_in_buffer usb serial operation with the
generic one.
[ 618.868815] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the read_bulk_callback usb serial operation with the
generic one.
[ 618.868818] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write_bulk_callback usb serial operation with the
generic one.
[ 618.868821] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the disconnect usb serial operation with the generic
one.
[ 618.868824] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the process_read_urb usb serial operation with the
generic one.
[ 618.868827] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the prepare_write_buffer usb serial operation with the
generic one.
[ 618.868850] USB Serial support registered for MCT U232
[ 618.868887] usbcore: registered new interface driver mct_u232
[ 618.868889] mct_u232: z2.1:Magic Control Technology USB-RS232
converter driver
# insert U232-P9 adapter
$ dmesg
[ 655.873178] usb 6-2: new full speed USB device using uhci_hcd and address 4
[ 656.538058] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
static descriptor matches
[ 656.538069] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
found interrupt in on endpoint 0
[ 656.538077] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
found interrupt in on endpoint 1
[ 656.538084] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
found bulk out on endpoint 2
[ 656.538092] mct_u232 6-2:1.0: MCT U232 converter detected
[ 656.538098] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
usb_serial_probe - setting up 2 port structures for this device
[ 656.538119] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
get_free_serial 1
[ 656.538127] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
get_free_serial - minor base = 0
[ 656.538136] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
usb_serial_probe - registering ttyUSB0
[ 656.538309] usb 6-2: MCT U232 converter now attached to ttyUSB0
# Run 'arduino' Java-based IDE which accesses serial port
$ dmesg
[ 711.975992] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_install
[ 711.976044] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_open - port 0
[ 711.976050] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
mct_u232_open port 0
[ 711.977915] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_modem_ctrl: state=0x6 > mcr=0xb
[ 711.978911] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_line_ctrl: 0x3
[ 711.979910] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
get_modem_stat: 0x0
[ 711.979915] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
msr_to_state: msr=0x0 > state=0x6
[ 711.980909] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_modem_ctrl: state=0x6 > mcr=0xb
[ 711.980925] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 711.980939] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 711.980945] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5402
[ 711.980952] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_set_termios - port 0
[ 711.981904] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_baud_rate: value: 0x2580, divisor: 0x8
[ 711.982908] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_baud_rate: send second control message, data = 00
[ 711.984899] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_line_ctrl: 0x3
[ 711.984914] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 711.984933] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 711.984943] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5402
[ 711.984953] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_set_termios - port 0
[ 711.985897] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_baud_rate: value: 0x2580, divisor: 0x8
[ 711.986915] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_baud_rate: send second control message, data = 00
[ 711.988898] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_line_ctrl: 0x3
[ 711.988913] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 711.988997] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_close - port 0
[ 711.989034] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_chars_in_buffer - port 0
[ 711.989045] /home/kernel-ppa/COD/linux/drivers/usb/serial/generic.c:
usb_serial_generic_chars_in_buffer - port 0
[ 711.989056] /home/kernel-ppa/COD/linux/drivers/usb/serial/generic.c:
usb_serial_generic_chars_in_buffer - returns 0
[ 711.989910] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_modem_ctrl: state=0x0 > mcr=0x8
[ 711.989920] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
mct_u232_close port 0
[ 711.989927] /home/kernel-ppa/COD/linux/drivers/usb/serial/generic.c:
usb_serial_generic_close - port 0
[ 711.989935] /home/kernel-ppa/COD/linux/drivers/usb/serial/generic.c:
generic_cleanup - port 0
[ 711.990884] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
mct_u232_read_int_callback - urb shutting down with status: -2
[ 711.990924] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_cleanup - port 0
[ 712.001901] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_install
[ 712.001924] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_open - port 0
[ 712.001933] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
mct_u232_open port 0
[ 712.003901] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_modem_ctrl: state=0x6 > mcr=0xb
[ 712.004907] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_line_ctrl: 0x3
[ 712.005890] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
get_modem_stat: 0x0
[ 712.005898] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
msr_to_state: msr=0x0 > state=0x6
[ 712.005908] mct_u232 ttyUSB0: usb_submit_urb(read bulk) failed pipe
0x40410480 err -22
[ 712.005919] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_close - port 0
[ 712.006883] /home/kernel-ppa/COD/linux/drivers/usb/serial/mct_u232.c:
set_modem_ctrl: state=0x0 > mcr=0x8
[ 712.006914] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_cleanup - port 0
And so ttyUSB0 is not usable.
What happens when it is working:
$ uname -r
2.6.34-02063407-generic
$ sudo modprobe usbserial debug=1
$ sudo modprobe mct_u232 debug=1
$ dmesg
[ 801.416561] usbcore: registered new interface driver usbserial
[ 801.416565] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the open usb serial operation with the generic one.
[ 801.416568] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write usb serial operation with the generic one.
[ 801.416571] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the close usb serial operation with the generic one.
[ 801.416574] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write_room usb serial operation with the generic
one.
[ 801.416577] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the chars_in_buffer usb serial operation with the
generic one.
[ 801.416580] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the read_bulk_callback usb serial operation with the
generic one.
[ 801.416582] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write_bulk_callback usb serial operation with the
generic one.
[ 801.416596] USB Serial support registered for generic
[ 801.416635] usbcore: registered new interface driver usbserial_generic
[ 801.416637] usbserial: USB Serial Driver core
[ 812.468040] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write usb serial operation with the generic one.
[ 812.468045] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write_room usb serial operation with the generic
one.
[ 812.468048] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the chars_in_buffer usb serial operation with the
generic one.
[ 812.468051] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the read_bulk_callback usb serial operation with the
generic one.
[ 812.468054] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the write_bulk_callback usb serial operation with the
generic one.
[ 812.468057] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
Had to override the disconnect usb serial operation with the generic
one.
[ 812.468080] USB Serial support registered for MCT U232
[ 812.468113] usbcore: registered new interface driver mct_u232
[ 812.468115] mct_u232: z2.1:Magic Control Technology USB-RS232
converter driver
# insert U232-P9 adapter
$ dmesg
[ 905.373173] usb 6-2: new full speed USB device using uhci_hcd and address 4
[ 906.140558] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
static descriptor matches
[ 906.140568] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
found interrupt in on endpoint 0
[ 906.140575] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
found interrupt in on endpoint 1
[ 906.140582] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
found bulk out on endpoint 2
[ 906.140589] mct_u232 6-2:1.0: MCT U232 converter detected
[ 906.140596] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
usb_serial_probe - setting up 2 port structures for this device
[ 906.140614] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
get_free_serial 1
[ 906.140621] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
get_free_serial - minor base = 0
[ 906.140629] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
usb_serial_probe - registering ttyUSB0
[ 906.140771] usb 6-2: MCT U232 converter now attached to ttyUSB0
# Run 'arduino' Java-based IDE which accesses serial port
$ dmesg
[ 974.831471] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_install
[ 974.831485] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_open - port 0
[ 974.836101] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.836122] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.836128] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5402
[ 974.836135] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_set_termios - port 0
[ 974.840156] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.840181] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.840190] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5402
[ 974.840199] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_set_termios - port 0
[ 974.844091] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.844187] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_close - port 0
[ 974.844193] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_chars_in_buffer - port 0
[ 974.844199] /home/kernel-ppa/COD/linux/drivers/usb/serial/generic.c:
usb_serial_generic_chars_in_buffer - port 0
[ 974.844204] /home/kernel-ppa/COD/linux/drivers/usb/serial/generic.c:
usb_serial_generic_chars_in_buffer - returns 0
[ 974.847107] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_cleanup - port 0
[ 974.858826] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_install
[ 974.858838] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_open - port 0
[ 974.863118] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.863128] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.863134] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5402
[ 974.863140] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_set_termios - port 0
[ 974.867114] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.867124] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.867130] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5402
[ 974.867136] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_set_termios - port 0
[ 974.871122] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_ioctl - port 0, cmd 0x5401
[ 974.871210] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_close - port 0
[ 974.871219] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_chars_in_buffer - port 0
[ 974.871227] /home/kernel-ppa/COD/linux/drivers/usb/serial/generic.c:
usb_serial_generic_chars_in_buffer - port 0
[ 974.871235] /home/kernel-ppa/COD/linux/drivers/usb/serial/generic.c:
usb_serial_generic_chars_in_buffer - returns 0
[ 974.874136] /home/kernel-ppa/COD/linux/drivers/usb/serial/usb-serial.c:
serial_cleanup - port 0
Having trouble to find which patch introduced this issue, and what the
problem is exactly. It looks like there are so many updates to USB
from 2.6.34 into 2.6.35 that I'm beyond my reach.
Eric
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Mct U232-p9 Driver
- All orders sent by creating an account on the photos. MCT U232-P9 is one of a few usb-to-serial adapters which offer +/-5V USB power bus voltage level upconversion to +/-12V standard serial interface voltage. I am having a major problem with these devices u232-P9. Problem, Win 10 drivers for Windows 10 64-bit free.
- Link: U232-p9 driver windows 81 64 bit Just converted from a Windows 7 OS to Windows 8. It was then that I found the MCT U232-P9 DB-9 Serial Adapter High Speed 230K USB SERIAL RS-232. Watch fairy tail dragon cry dub. MCTHeadquartered in Taipei, Taiwan, was established 1997 along with its manufacturing branch, Long Jack set-up chipset.
- USB DB-25 RS-232. Converts a USB port into a 25-pin male RS-232 serial port capable of speeds up to 230,400 bps. The USB Serial Adapter is designed to make serial port expansion quick and simple. Features & Specifications: Installed as a standard Windows COM ports, Full RS-232 modem control signals, RS-232 data signals; TxD, RxD.
- It was then that i found the mct u232-p9 db-9 serial adapter high speed 230k usb serial rs-232. Post your issue to twitter, and we will reply in minutes. Mct U232 P9 Driver, fasrmost. I have u232 p25 same question i wil keep coming back for sure. Software for usb converter model u232-p9 to be used with windows 7 32 bit thanks.