Hi all,
I'm trying to open a serial port which has the following owner
ship and group permissions:
crw-rw---- 1 root dialout 4, 64 Oct 10 11:05 /dev/ttyS0
from a process being run by a user with uid and gid of X. However,
user X is also in the dialout group.
However, when the process tried to open /dev/ttyS0 it fails with
EPERM. I thought X being a member of the group that owns the device
was sufficent to allow X to open the device.
Obviously if I add world read/write permissions to the device it
works.
Cluebat please?
Erik
--
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Erik de Castro Lopo
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"One of Subversions biggest weaknesses is its lack of adequate internal
tracking for merges." -- William Nagle in "Subversion Version Control"
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