Messages in this thread |  | | Subject | Minor numbers | | From | "Alex Q Chen" <> | | Date | Sun, 13 May 2001 18:28:46 -0700 |
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To the best of my knowledge, dev_t number is still 16 bits with 8 most significant bits being the major number and the other 8 bits being the minor number; which of course means that minor numbers can only go up to 255. Has this limitation been some how addressed with 2.4? 256 devices per module, sometimes is not enough, especially if you are in the SAN environment; or when the 256 minors numbers are broken down to several ranges of numbers to address different types of special files. I don't see how this problem can be solved with dev_fs either. Anyone out there with a work-around or is proposing a solution? I believe that minor and major numbers for SUN and AIX are both 16 bits each (32 bits dev_t).
Thanks in advance for your input.
Thanks!
Sincerely, Alex Chen
IBM SSD Device Driver Development Office: 9000 S. Rita Rd 9032/2262 Email: aqchen@us.ibm.com Phone: (external) 520-799-5212 (Tie Line) (321)-5212
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