lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Mon, 29 Sep 2014 18:15:05 +0200 From: Sebastian Andrzej Siewior <bigeasy@...utronix.de> To: Peter Hurley <peter@...leysoftware.com> Cc: Heikki Krogerus <heikki.krogerus@...ux.intel.com>, linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, tony@...mide.com, balbi@...com, gregkh@...uxfoundation.org, Alan Cox <alan@...ux.intel.com> Subject: Re: [PATCH 09/16] tty: serial: 8250_dma: Add a TX trigger workaround for AM33xx * Peter Hurley | 2014-09-17 08:20:41 [-0400]: >> So I connected my am335x-evm >> with beagle board xm because both of them have an old fashion UART >> connector (instead those uart-to-usb). Both configured with HW-Flow and >> I haven't seen the function invoked but I saw "port->icount.overrun" >> being incremented. This shouldn't happen. So I am a little puzzled hereā¦ > >Yeah, that's weird. Do you have a break-out box to confirm that RTS/CTS are >being driven? => - beagle board According to schematics the board has only RX and TX connected. No RTS/CTS - am335x-evm The schematics say "DNI" next to a resistor on RTS/CTS. DNI stands most likely for "Do Not Install". With a scope it looks like the the wire behind the MAX is open. - beagle bone black Only RX and TX are wired towards the USB2serial device. In short: each device I have has RTS/CTS not working/connected and I can't test HW handshake with HW available. >Regards, >Peter Hurley Sebastian -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists