-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi list, I'm writing a program which communicates via modem with an embedded device (electrical network monitoring). The frames are terminated by a BREAK. My program works fine when I use a Cyclades 8Yo multiports card, but fails using USB to serial adapters (tried with pl2303 and FTDI converters). I suspect that the BREAK are not passed correctly, but I don't have equipment to check. I've tried with: tcsendbreak(modem,0); ioctl(modem, TCSBRK,0); ioctl(modem, TCSBRKP, 0); - From pl2303 debug mode, I see that pl2303_break_ctl is called: drivers/usb/serial/pl2303.c: pl2303_break_ctl - port 0 drivers/usb/serial/pl2303.c: pl2303_break_ctl - turning break on drivers/usb/serial/pl2303.c: pl2303_write_bulk_callback - port 0 drivers/usb/serial/pl2303.c: pl2303_send - port 0 drivers/usb/serial/pl2303.c: pl2303_break_ctl - port 0 drivers/usb/serial/pl2303.c: pl2303_break_ctl - turning break off I found a few references of similar problems in the past, but it was for older kernels (I'm using 2.6.28.4), so the question remains: should it work or is there a known problem sending BREAK using ttyUSB? Thanks, - -- Jean-Denis Girard SysNux Systèmes Linux en Polynésie française http://www.sysnux.pf/ Tél: +689 50 10 40 / GSM: +689 79 75 27 -----BEGIN PGP SIGNATURE----- iEYEARECAAYFAkmZ9sgACgkQuu7Rv+oOo/iFuQCeJSaxikghrQhjS68WKU0Hc//7 wZQAn2XMnmunfW2avO/uPFQDrw+s9INO =AB0j -----END PGP SIGNATURE----- -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
