[hsflinux] AT+CLASS=? Only Returns 0?

Steven Ding wjding at yeah.net
Sun Jun 1 04:37:39 EDT 2008

Hi all,

I installed hsfmodem on Debian 2.6.18. There are no error during

The only problem is that when I tried to send AT+FCLASS=? in minicom, it
returns only 0.

However, from the HSF FAQ it seems both HCF and HSF driver support FAX
FCLASS=1 and FCLASS=1.0 functionality.

Is that related to the kernel version, or license?

Does anyone have any ideas?

Thank you!

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