| To: | Marc Karasek <marc_karasek@ivivity.com> |
|---|---|
| Subject: | Re: RFC: run-time defining serial ports |
| From: | "Gleb O. Raiko" <raiko@niisi.msk.ru> |
| Date: | Fri, 13 Jul 2001 18:48:59 +0400 |
| Cc: | Jun Sun <jsun@mvista.com>, linux-mips@oss.sgi.com |
| Organization: | NIISI RAN |
| References: | <3B4E45D9.8DBE84E7@mvista.com> <995034043.1803.0.camel@localhost.localdomain> |
| Sender: | owner-linux-mips@oss.sgi.com |
Marc Karasek wrote: > > All boot monitors (YAMON, PMON, > REDBOOT) initialize the serial port as part of there bootup for use as a > debug monitor, etc. Why should we have to redo something that is > already taken care of. Because we've got completely another policy of handling a device. For example, a boot monitor (good one) must implement polling technique only, Linux uses interrupt-driven technique (well, mostly). In general case, Linux has to reinitialize a device after a boot monitor. It's clear. Regards, Gleb. |
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