RE: jumbled characters on serial port
From: Jean-Denis Boyer <hidden>
Date: 2003-06-27 15:47:55
I would suggest you write yourself a kind of "safe_printk" (over printk) that filters characters that can not be displayed, and then use that function in your code. It is, IMHO, easier to fix the problem there than losing the tty and/or the terminal emulator. You can even hack directly the printk function (kernel/printk.c:412) and add a filter just after the call to vsnprintf. Regards, -------------------------------------------- Jean-Denis Boyer, Software Designer M5T Centre d'Excellence en Télécom Inc. 4283 Garlock Street Sherbrooke (Québec) J1L 2C8 CANADA (819)829-3972 x241 --------------------------------------------
-----Original Message----- From: Omanakuttan [mailto:<redacted>] Sent: 27 juin, 2003 11:31 To: <redacted> Subject: jumbled characters on serial port Hi, We have developed MCC drivers for mpc8260. For debugging the driver we have put several printk in the code. Since the data is not ascii all the time, sometimes the screen gets fully jumbled characters. I understand that printing some binary data causes this. We are using minicom and busybox .60.5. If anybody knows how to get the characters back, please advise. We tried closing down the minicom window and restarting minicom. This does not help. More over we are getting jumbled chars, not secondary font. (if I were running bash, i would have run `reset`. But I never faced this in i386)
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