Re: LINUX is obsolete

• Subject: Re: LINUX is obsolete
• From: ast@cs.vu.nl (Andy Tanenbaum)
• Date: 29 Jan 92 18:03:01 GMT
• Newsgroups: comp.os.minix
• Organization: Fac. Wiskunde & Informatica, Vrije Universiteit, Amsterdam

 In article <1992Jan29.141212.29636@epas.toronto.edu> meggin@epas.utoronto.ca (David Megginson) writes:
 >
 >Why does the
 >Intel architecture _not_ allow drivers to be independent programs?
 
 The drivers have to read and write the device registers in I/O space, and
 this cannot be done in user mode on the 286 and 386. If it were possible
 to do I/O in a protected way in user space, all the I/O tasks could have
 been user programs, like FS and MM.
 
 Andy Tanenbaum (ast@cs.vu.nl)
 
 
 
 

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