On Thu, Apr 7, 2011 at 14:39, RONETIX - Asen Dimov wrote: > On 11/30/2010 09:25 PM, Daniel Walker wrote: >> This driver adds a basic console that uses the arm JTAG >> DCC to transfer data back and forth. It has support for >> ARMv6 and ARMv7. >> >> This console is created under the HVC driver, and should be named >> /dev/hvcX (or /dev/hvc0 for example). >> >> drivers/char/Kconfig | 9 +++ >> drivers/char/Makefile | 1 + >> drivers/char/hvc_dcc.c | 133 >> ++++++++++++++++++++++++++++++++++++++++++++++++ > > ... > > this DCC driver implements "one channel", but what about implementing > "multiple channels". For example reserve few(3) bits for channel number, > and two bits for carried data, then fill the rest bytes with with some data > and send the word(32 bits) over DCC. On the Linux side writing on /dev/hvcX > puts the number X as channel number, and on the other side the CPU > emulator gets the data and redistribute it to TCP/IP socket. > > I have started write some code implementing this. Are there any one > interested > in this multiple channels, and are there any one started to work on it?
this sort of multiplexing of the data stream sounds like the job for userspace ? or maybe a line discipline ? inserting structured data into the kernel driver doesnt sound right to me ... -mike _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
