Messages in this thread | | | Date | Wed, 16 May 2007 18:04:45 +0200 (MEST) | From | Jan Engelhardt <> | Subject | ark3116: receive returns negative |
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Hello,
I seem to have problems with the ark3116 driver from 2.6.18.8. This is a USB-RS232 cable. Just opening the /dev/ttyUSB0 device gives (this is the debug output enabled by `modprobe ark3116 debug=1`).
The lines that look suspicious are /serial/ark3116.c: 124 < 1 bytes [0xFFFFFFB0] and /serial/ark3116.c: ark3116_ioctl cmd 0x5401 not supported
I have also seen things like "id here < -62 [0x10]", which would indicate that usb_control_msg() returned something very negative (-ETIME!?).
Issuing a write() on an open fd to ttyUSB does not generate any further debug output. Is the driver even complete/functional? I do not know where to go from here, please advise.
Full output: /serial/ark3116.c: ark3116_open - port 0 /serial/ark3116.c: 111 < 1 bytes [0x03] /serial/ark3116.c: 112 > ok /serial/ark3116.c: 113 > ok /serial/ark3116.c: 114 > ok /serial/ark3116.c: 115 > ok /serial/ark3116.c: 116 < 1 bytes [0x03] /serial/ark3116.c: 117 > ok /serial/ark3116.c: 118 < 1 bytes [0x02] /serial/ark3116.c: 119 > ok /serial/ark3116.c: 120 < 1 bytes [0x00] /serial/ark3116.c: 121 > ok /serial/ark3116.c: 122 < 1 bytes [0x01] /serial/ark3116.c: 123 > ok /serial/ark3116.c: 124 < 1 bytes [0xFFFFFFB0] /serial/ark3116.c: ark3116_set_termios - port 0 /serial/ark3116.c: setting CS8 /serial/ark3116.c: setting parity to NONE /serial/ark3116.c: setting 1 stop bit /serial/ark3116.c: 000 < 1 bytes [0x02] /serial/ark3116.c: setting baudrate to 9600 (->reg=312) /serial/ark3116.c: 147 > ok /serial/ark3116.c: 148 > ok /serial/ark3116.c: 149 > ok /serial/ark3116.c: 150 > ok /serial/ark3116.c: 151 < 1 bytes [0x03] /serial/ark3116.c: 152 > ok /serial/ark3116.c: updating bit count, stop bit or parity (cfg=0x03) /serial/ark3116.c: 153 < 1 bytes [0x00] /serial/ark3116.c: 154 > ok /serial/ark3116.c: ark3116_ioctl cmd 0x5401 not supported
Jan -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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