131 struct sp15c  struct
133     struct sp15c *next;  argument
135     SANE_Option_Descriptor opt[NUM_OPTIONS];
136     SANE_Device sane;
138     char vendor[9];
139     char product[17];
140     char version[5];
142     char *devicename;		/* name of the scanner device */
143     int sfd;			/* output file descriptor, scanner device */
144     int pipe;
145     int reader_pipe;
147     int scanning;		/* "in progress" flag */
148     int autofeeder;		/* detected */
149     int use_adf;		/* requested */
150     SANE_Pid reader_pid;	/* child is running */
151     int prescan;		/* ??? */
154     int x_res;			/* resolution in */
155     int y_res;			/* pixels/inch */
156     int tl_x;			/* top left position, */
157     int tl_y;			/* in inch/1200 units */
158     int br_x;			/* bottom right position, */
159     int br_y;			/* in inch/1200 units */
161     int brightness;
162     int threshold;
163     int contrast;
164     int composition;
165     int bitsperpixel;		/* at the scanner interface */
166     int halftone;
167     int rif;
168     int bitorder;
169     int compress_type;
170     int compress_arg;
171     int vendor_id_code;
195 #define SP15C_CONFIG_FILE "sp15c.conf"  argument